Release 16.0

Set C standard version depending on feature tests
Regression tests: check compilation on BSD
2017-12-20 20:19:49 +01:00 · 2017-12-20 19:59:35 +01:00 · 2017-12-20 19:56:49 +01:00 · 2017-12-20 19:43:23 +01:00 · 2017-12-20 19:32:29 +01:00 · 2017-12-20 19:24:18 +01:00
65 changed files with 5902 additions and 1914 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
 build
 *.user
 version.h
+*.pyc
+*.todo
+packaging/make_ubuntu2.sh
+test_*.log
--- a/3
+++ b/3
@@ -31,6 +31,7 @@ Contributors:
  Matthew Otnel : config option systray_name_filter
  Ryan Gray, Jeff Blake (https://gitlab.com/berkley4) : battery format
  aaaz (https://gitlab.com/aaaz) : clock fixes
+  heisenbug (https://gitlab.com/heisenbugh) : taskbar button tinting with icon color

 Translations:
  Bosnian:
@@ -45,3 +46,5 @@ Translations:
    Daniel Napora <napcok@gmail.com>
  Serbian:
    Dino Duratović <dinomol@mail.com>
+  Spanish:
+    Vic <vicmz@yandex.com>
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,7 @@ endif()
 include( FindPkgConfig )
 include( CheckLibraryExists )
 include( CheckCSourceCompiles )
-pkg_check_modules( X11 REQUIRED x11 xcomposite xdamage xinerama xrender xrandr>=1.3 )
+pkg_check_modules( X11 REQUIRED x11 xcomposite xdamage xinerama xext xrender xrandr>=1.3 )
 pkg_check_modules( PANGOCAIRO REQUIRED pangocairo )
 pkg_check_modules( PANGO REQUIRED pango )
 pkg_check_modules( CAIRO REQUIRED cairo )
@@ -62,6 +62,17 @@ else()
 	set(BACKTRACE_L_FLAGS "")
 endif()

+check_c_source_compiles(
+    "#define print(x) _Generic((x), default : print_unknown)(x) \n void print_unknown(){} \n int main () { print(0); }"
+    HAS_GENERIC)
+
+if(HAS_GENERIC)
+    add_definitions(-DHAS_GENERIC)
+    set(CSTD "c11")
+else()
+    set(CSTD "c99")
+endif(HAS_GENERIC)
+
 if( ENABLE_RSVG )
 pkg_check_modules( RSVG librsvg-2.0>=2.14.0 )
 endif( ENABLE_RSVG )
@@ -116,11 +127,11 @@ include_directories( ${PROJECT_BINARY_DIR}

 set( SOURCES src/config.c
             src/panel.c
-             src/server.c
+             src/util/server.c
             src/main.c
             src/init.c
-             src/signals.c
-             src/tracing.c
+             src/util/signals.c
+             src/util/tracing.c
             src/mouse_actions.c
             src/drag_and_drop.c
             src/clock/clock.c
@@ -146,7 +157,9 @@ set( SOURCES src/config.c
             src/util/timer.c
             src/util/cache.c
             src/util/color.c
+             src/util/print.c
             src/util/gradient.c
+             src/util/test.c
             src/util/uevent.c
             src/util/window.c )

@@ -267,7 +280,7 @@ endif( RT_LIBRARY )
 target_link_libraries( tint2 m )

 add_dependencies( tint2 version )
-set_target_properties( tint2 PROPERTIES COMPILE_FLAGS "-Wall -Wpointer-arith -fno-strict-aliasing -pthread -std=c99 ${ASAN_C_FLAGS} ${TRACING_C_FLAGS}" )
+set_target_properties( tint2 PROPERTIES COMPILE_FLAGS "-Wall -Wpointer-arith -fno-strict-aliasing -pthread -std=${CSTD} ${ASAN_C_FLAGS} ${TRACING_C_FLAGS}" )
 set_target_properties( tint2 PROPERTIES LINK_FLAGS "-pthread -fno-strict-aliasing ${ASAN_L_FLAGS} ${BACKTRACE_L_FLAGS}  ${TRACING_L_FLAGS}" )

 install( TARGETS tint2 DESTINATION bin )
--- a/11
+++ b/11
@@ -1,3 +1,13 @@
+2017-12-20 16.0
+- Fixes:
+  - Taskbar: `taskbar_distribute_size = 1` now playes well with `task_align = center` and
+    `task_align = right` (issue #688)
+- Enhancements:
+  - Added Spanish translation (contributed by Vicmz)
+  - Executor: updated tooltip documentation (issue #676)
+  - Systray: warn on duplicate config option systray_name_filter (issue #652)
+  - Changed standard from C99 to C11 to support generic printing for unit tests
+
 2017-11-05 15.3
 - Fixes:
  - Launcher: Reset signal mask before executing commands (issue #674)
@@ -965,3 +975,4 @@ released tint-0.2
 .
 .
 .
+.
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
-# Latest stable release: 15.3
-Changes: https://gitlab.com/o9000/tint2/blob/15.3/ChangeLog
+# Latest stable release: 16.0
+Changes: https://gitlab.com/o9000/tint2/blob/16.0/ChangeLog

 Documentation: [doc/tint2.md](doc/tint2.md)

@@ -8,7 +8,7 @@ Compile it with (after you install the [dependencies](https://gitlab.com/o9000/t
 ```
 git clone https://gitlab.com/o9000/tint2.git
 cd tint2
-git checkout 15.3
+git checkout 16.0
 mkdir build
 cd build
 cmake ..
@@ -61,9 +61,9 @@ tint2 is a simple panel/taskbar made for modern X window managers. It was specif

 # Known issues

-  * Graphic glitches on Intel graphics cards can be avoided by changing the acceleration method to UXA ([issue 595](https://gitlab.com/o9000/tint2/issues/595))
-  * Window managers that do not follow exactly the EWMH specification might not interact well with tint2 (known issues for [awesome](https://gitlab.com/o9000/tint2/issues/385), [bspwm](https://gitlab.com/o9000/tint2/issues/524). [openbox-multihead](https://gitlab.com/o9000/tint2/issues/456))
-  * Full transparency requires a compositor such as Compton (if not provided already by the window manager, as in Compiz/Unity, KDE or XFCE)
+  * Graphical glitches on Intel graphics cards can be avoided by changing the acceleration method to UXA ([issue 595](https://gitlab.com/o9000/tint2/issues/595))
+  * Window managers that do not follow exactly the EWMH specification might not interact well with tint2 ([issue 627](https://gitlab.com/o9000/tint2/issues/627)).
+  * Full transparency requires a compositor such as Compton (if not provided already by the window manager, as in Compiz/Unity, KDE or XFCE).

 # How can I help out?

--- a/doc/manual.html
+++ b/doc/manual.html
@@ -270,6 +270,8 @@ Try to respect as much as possible the order of the options as given below.</p><
 <li><code>color</code> is specified in hex RGB, e.g. #ff0000 is red</li>
 <li><code>opacity</code> varies from (0 to 100), where 0 is fully transparent, 100 is fully opaque</li>
 </ul></li>
+<li><p><code>border_content_tint_weight = integer</code> : Mixes the border color with the content color (for tasks, this is the average color of the window icon). Values must be between 0 (no mixing) and 100 (fully replaces the color). <em>(since 16.0)</em></p></li>
+<li><p><code>background_content_tint_weight = integer</code> : Mixes the background color with the content color (for tasks, this is the average color of the window icon). Values must be between 0 (no mixing) and 100 (fully replaces the color). <em>(since 16.0)</em></p></li>
 </ul>
 <p>You can define as many backgrounds as you want. For example, the following config defines two backgrounds:</p><pre class="highlight plaintext"><code>rounded = 1
 border_width = 0
@@ -481,6 +483,8 @@ panel_size = 94% 30
 <li><p><code>task_text = boolean (0 or 1)</code> : Whether to display the task text.</p></li>
 <li><p><code>task_centered = boolean (0 or 1)</code> : Whether the task text is centered.</p></li>
 <li><p><code>task_tooltip = boolean (0 or 1)</code> : Whether to show tooltips for tasks.</p></li>
+<li><p><code>task_thumbnail = boolean (0 or 1)</code> : Whether to show thumbnail tooltips for tasks. <em>(since 16.0)</em></p></li>
+<li><p><code>task_thumbnail_size = width</code> : Thumbnail size. <em>(since 16.0)</em></p></li>
 <li><p><code>task_maximum_size = width height</code></p>
 <ul>
 <li><code>width</code> is used with horizontal panels to limit the size of the tasks. Use <code>width = 0</code> to get full taskbar width.</li>
@@ -601,7 +605,7 @@ panel_size = 94% 30
 <li><p><code>execp_cache_icon = boolean (0 or 1)</code> : If <code>execp_cache_icon = 0</code>, the image is reloaded each time the command is executed (useful if the image file is changed on disk by the program executed by <code>execp_command</code>). <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_icon_w = integer</code> : You can use <code>execp_icon_w</code> and <code>execp_icon_h</code> to resize the image. If one of them is zero/missing, the image is rescaled proportionally. If both of them are zero/missing, the image is not rescaled. <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_icon_h = integer</code> : See <code>execp_icon_w</code>. <em>(since 0.12.4)</em></p></li>
-<li><p><code>execp_tooltip = text</code> : The tooltip. Leave it empty to not display a tooltip. Not specifying this option leads to showing an automatically generated tooltip with information about when the command was last executed. <em>(since 0.12.4)</em></p></li>
+<li><p><code>execp_tooltip = text</code> : The tooltip. If left empty, no tooltip is displayed. If missing, the standard error of the command is shown as a tooltip (an ANSI clear screen sequence can reset the contents, bash: <code>printf '\e[2J'</code>, C: <code>printf(&quot;\x1b[2J&quot;);</code>). If the standard error is empty, the tooltip will show information about the time when the command was last executed. <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_font = [FAMILY-LIST] [STYLE-OPTIONS] [SIZE]</code> : The font used to draw the text.  <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_font_color = color opacity</code> : The font color. <em>(since 0.12.4)</em></p></li>
 <li><p><code>execp_markup = boolean (0 or 1)</code> : If non-zero, the output of the command is treated as Pango markup, which allows rich text formatting. The format is <a href="https://developer.gnome.org/pygtk/stable/pango-markup-language.html">documented here</a>. Note that using this with commands that print data downloaded from the Internet is a possible security risk. <em>(since 0.12.4)</em></p></li>
--- a/doc/readme.html
+++ b/doc/readme.html
@@ -199,9 +199,9 @@ pre {
 </style>
 </head>
 <body>
-<h1 id="latest-stable-release-15-3"><span class="md2man-title">Latest</span> <span class="md2man-section">stable</span> <span class="md2man-date">release:</span> <span class="md2man-source">15.3</span><a name="latest-stable-release-15-3" href="#latest-stable-release-15-3" class="md2man-permalink" title="permalink"></a></h1><p>Changes: <a href="https://gitlab.com/o9000/tint2/blob/15.3/ChangeLog">https://gitlab.com/o9000/tint2/blob/15.3/ChangeLog</a></p><p>Documentation: <a href="manual.html">manual.html</a></p><p>Compile it with (after you install the <a href="https://gitlab.com/o9000/tint2/wikis/Install#dependencies">dependencies</a>):</p><pre class="highlight plaintext"><code>git clone https://gitlab.com/o9000/tint2.git
+<h1 id="latest-stable-release-16-0"><span class="md2man-title">Latest</span> <span class="md2man-section">stable</span> <span class="md2man-date">release:</span> <span class="md2man-source">16.0</span><a name="latest-stable-release-16-0" href="#latest-stable-release-16-0" class="md2man-permalink" title="permalink"></a></h1><p>Changes: <a href="https://gitlab.com/o9000/tint2/blob/16.0/ChangeLog">https://gitlab.com/o9000/tint2/blob/16.0/ChangeLog</a></p><p>Documentation: <a href="manual.html">manual.html</a></p><p>Compile it with (after you install the <a href="https://gitlab.com/o9000/tint2/wikis/Install#dependencies">dependencies</a>):</p><pre class="highlight plaintext"><code>git clone https://gitlab.com/o9000/tint2.git
 cd tint2
-git checkout 15.3
+git checkout 16.0
 mkdir build
 cd build
 cmake ..
@@ -239,9 +239,9 @@ update-mime-database /usr/local/share/mime
 </ul>
 <h1 id="known-issues">Known issues<a name="known-issues" href="#known-issues" class="md2man-permalink" title="permalink"></a></h1>
 <ul>
-<li>Graphic glitches on Intel graphics cards can be avoided by changing the acceleration method to UXA (<a href="https://gitlab.com/o9000/tint2/issues/595">issue 595</a>)</li>
-<li>Window managers that do not follow exactly the EWMH specification might not interact well with tint2 (known issues for <a href="https://gitlab.com/o9000/tint2/issues/385">awesome</a>, <a href="https://gitlab.com/o9000/tint2/issues/524">bspwm</a>. <a href="https://gitlab.com/o9000/tint2/issues/456">openbox-multihead</a>)</li>
-<li>Full transparency requires a compositor such as Compton (if not provided already by the window manager, as in Compiz/Unity, KDE or XFCE)</li>
+<li>Graphical glitches on Intel graphics cards can be avoided by changing the acceleration method to UXA (<a href="https://gitlab.com/o9000/tint2/issues/595">issue 595</a>)</li>
+<li>Window managers that do not follow exactly the EWMH specification might not interact well with tint2 (<a href="https://gitlab.com/o9000/tint2/issues/627">issue 627</a>).</li>
+<li>Full transparency requires a compositor such as Compton (if not provided already by the window manager, as in Compiz/Unity, KDE or XFCE).</li>
 </ul>
 <h1 id="how-can-i-help-out">How can I help out?<a name="how-can-i-help-out" href="#how-can-i-help-out" class="md2man-permalink" title="permalink"></a></h1>
 <ul>
--- a/doc/tint2.1
+++ b/doc/tint2.1
@@ -1,4 +1,4 @@
-.TH TINT2 1 "2017\-11\-05" 15.3
+.TH TINT2 1 "2017\-12\-20" 16.0
 .SH NAME
 .PP
 tint2 \- lightweight panel/taskbar
@@ -150,6 +150,10 @@ The tint2 config file starts with the options defining background elements with
 .IP \(bu 2
 \fB\fCopacity\fR varies from (0 to 100), where 0 is fully transparent, 100 is fully opaque
 .RE
+.IP \(bu 2
+\fB\fCborder_content_tint_weight = integer\fR : Mixes the border color with the content color (for tasks, this is the average color of the window icon). Values must be between 0 (no mixing) and 100 (fully replaces the color). \fI(since 16.0)\fP
+.IP \(bu 2
+\fB\fCbackground_content_tint_weight = integer\fR : Mixes the background color with the content color (for tasks, this is the average color of the window icon). Values must be between 0 (no mixing) and 100 (fully replaces the color). \fI(since 16.0)\fP
 .RE
 .PP
 You can define as many backgrounds as you want. For example, the following config defines two backgrounds:
@@ -508,6 +512,10 @@ The following options configure the task buttons in the taskbar:
 .IP \(bu 2
 \fB\fCtask_tooltip = boolean (0 or 1)\fR : Whether to show tooltips for tasks.
 .IP \(bu 2
+\fB\fCtask_thumbnail = boolean (0 or 1)\fR : Whether to show thumbnail tooltips for tasks. \fI(since 16.0)\fP
+.IP \(bu 2
+\fB\fCtask_thumbnail_size = width\fR : Thumbnail size. \fI(since 16.0)\fP
+.IP \(bu 2
 \fB\fCtask_maximum_size = width height\fR
 .RS
 .IP \(bu 2
@@ -716,7 +724,7 @@ To hide the clock, comment \fB\fCtime1_format\fR and \fB\fCtime2_format\fR\&.
 .IP \(bu 2
 \fB\fCexecp_icon_h = integer\fR : See \fB\fCexecp_icon_w\fR\&. \fI(since 0.12.4)\fP
 .IP \(bu 2
-\fB\fCexecp_tooltip = text\fR : The tooltip. Leave it empty to not display a tooltip. Not specifying this option leads to showing an automatically generated tooltip with information about when the command was last executed. \fI(since 0.12.4)\fP
+\fB\fCexecp_tooltip = text\fR : The tooltip. If left empty, no tooltip is displayed. If missing, the standard error of the command is shown as a tooltip (an ANSI clear screen sequence can reset the contents, bash: \fB\fCprintf '\\e[2J'\fR, C: \fB\fCprintf("\\x1b[2J");\fR). If the standard error is empty, the tooltip will show information about the time when the command was last executed. \fI(since 0.12.4)\fP
 .IP \(bu 2
 \fB\fCexecp_font = [FAMILY\-LIST] [STYLE\-OPTIONS] [SIZE]\fR : The font used to draw the text.  \fI(since 0.12.4)\fP
 .IP \(bu 2
--- a/doc/tint2.md
+++ b/doc/tint2.md
@@ -1,4 +1,4 @@
-# TINT2 1 "2017-11-05" 15.3
+# TINT2 1 "2017-12-20" 16.0

 ## NAME
 tint2 - lightweight panel/taskbar
@@ -119,6 +119,10 @@ The tint2 config file starts with the options defining background elements with
    * `color` is specified in hex RGB, e.g. #ff0000 is red
    * `opacity` varies from (0 to 100), where 0 is fully transparent, 100 is fully opaque

+  * `border_content_tint_weight = integer` : Mixes the border color with the content color (for tasks, this is the average color of the window icon). Values must be between 0 (no mixing) and 100 (fully replaces the color). *(since 16.0)*
+
+  * `background_content_tint_weight = integer` : Mixes the background color with the content color (for tasks, this is the average color of the window icon). Values must be between 0 (no mixing) and 100 (fully replaces the color). *(since 16.0)*
+
 You can define as many backgrounds as you want. For example, the following config defines two backgrounds:

 ```
@@ -409,6 +413,10 @@ The following options configure the task buttons in the taskbar:

  * `task_tooltip = boolean (0 or 1)` : Whether to show tooltips for tasks.

+  * `task_thumbnail = boolean (0 or 1)` : Whether to show thumbnail tooltips for tasks. *(since 16.0)*
+
+  * `task_thumbnail_size = width` : Thumbnail size. *(since 16.0)*
+
  * `task_maximum_size = width height`
    * `width` is used with horizontal panels to limit the size of the tasks. Use `width = 0` to get full taskbar width.
    * `height` is used with vertical panels.
@@ -591,7 +599,7 @@ The action semantics:

  * `execp_icon_h = integer` : See `execp_icon_w`. *(since 0.12.4)*

-  * `execp_tooltip = text` : The tooltip. Leave it empty to not display a tooltip. Not specifying this option leads to showing an automatically generated tooltip with information about when the command was last executed. *(since 0.12.4)*
+  * `execp_tooltip = text` : The tooltip. If left empty, no tooltip is displayed. If missing, the standard error of the command is shown as a tooltip (an ANSI clear screen sequence can reset the contents, bash: `printf '\e[2J'`, C: `printf("\x1b[2J");`). If the standard error is empty, the tooltip will show information about the time when the command was last executed. *(since 0.12.4)*

  * `execp_font = [FAMILY-LIST] [STYLE-OPTIONS] [SIZE]` : The font used to draw the text.  *(since 0.12.4)*

--- a/get_version.sh
+++ b/get_version.sh
@@ -1,9 +1,10 @@
 #!/bin/sh

-MAJOR=0.14
+SCRIPT_DIR=$(dirname "$0")
 DIRTY=""
+VERSION=""

-if git status 1>/dev/null 2>/dev/null
+if [ -d ${SCRIPT_DIR}/.git ] && git status 1>/dev/null 2>/dev/null
 then
    git update-index -q --ignore-submodules --refresh
    # Disallow unstaged changes in the working tree
@@ -31,9 +32,23 @@ then
            DIRTY="-dirty"
        fi
    fi
-    VERSION=$(git describe --exact-match 2>/dev/null || echo "$MAJOR-git$(git show -s --pretty=format:%ci | cut -d ' ' -f 1 | tr -d '-').$(git show -s --pretty=format:%h)")$DIRTY
-else
-    SCRIPT_DIR=$(dirname "$0")
+    if git describe 1>/dev/null 2>/dev/null
+    then
+        VERSION=$(git describe 2>/dev/null)$DIRTY
+    elif git log -n 1 1>/dev/null 2>/dev/null
+    then
+        VERSION=$(head -n 1 "${SCRIPT_DIR}/ChangeLog" | cut -d ' ' -f 2)
+        if [ "$VERSION" = "master" ]
+        then
+            PREVIOUS=$(grep '^2' "${SCRIPT_DIR}/ChangeLog" | head -n 2 | tail -n 1 | cut -d ' ' -f 2)
+            HASH=$(git log -n 1 --pretty=format:%cI.%ct.%h | tr -d ':' | tr -d '-' | tr '.' '-' | sed 's/T[0-9\+]*//g' 2>/dev/null)
+            VERSION=$PREVIOUS-next-$HASH
+        fi
+    fi
+fi
+
+if [ -z "$VERSION" ]
+then
    VERSION=$(head -n 1 "${SCRIPT_DIR}/ChangeLog" | cut -d ' ' -f 2)
    if [ "$VERSION" = "master" ]
    then
@@ -41,7 +56,6 @@ else
    fi
 fi

-
 VERSION=$(echo "$VERSION" | sed 's/^v//')

 echo '#define VERSION_STRING "'$VERSION'"' > version.h
--- a/packaging/update_version_status.sh
+++ b/packaging/update_version_status.sh
@@ -1,5 +1,7 @@
 #!/bin/bash

+export PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
+
 set -e
 set -x

--- a/src/button/button.c
+++ b/src/button/button.c
@@ -52,11 +52,9 @@ void destroy_button(void *obj)
    Button *button = (Button *)obj;
    if (button->frontend) {
        // This is a frontend element
-        if (button->frontend->icon) {
-            imlib_context_set_image(button->frontend->icon);
-            imlib_free_image();
-            button->frontend->icon = NULL;
-        }
+        free_icon(button->frontend->icon);
+        free_icon(button->frontend->icon_hover);
+        free_icon(button->frontend->icon_pressed);
        button->backend->instances = g_list_remove_all(button->backend->instances, button);
        free_and_null(button->frontend);
        remove_area(&button->area);
@@ -79,7 +77,7 @@ void destroy_button(void *obj)

        if (button->backend->instances) {
            fprintf(stderr, "tint2: Error: Attempt to destroy backend while there are still frontend instances!\n");
-            exit(-1);
+            exit(EXIT_FAILURE);
        }
        free(button->backend);
        free(button);
--- a/src/config.c
+++ b/src/config.c
@@ -350,6 +350,12 @@ void add_entry(char *key, char *value)
        id = (id < gradients->len && id >= 0) ? id : -1;
        if (id >= 0)
            bg->gradients[MOUSE_DOWN] = &g_array_index(gradients, GradientClass, id);
+    } else if (strcmp(key, "border_content_tint_weight") == 0) {
+        Background *bg = &g_array_index(backgrounds, Background, backgrounds->len - 1);
+        bg->border_content_tint_weight = MAX(0.0, MIN(1.0, atoi(value) / 100.));
+    } else if (strcmp(key, "background_content_tint_weight") == 0) {
+        Background *bg = &g_array_index(backgrounds, Background, backgrounds->len - 1);
+        bg->fill_content_tint_weight = MAX(0.0, MIN(1.0, atoi(value) / 100.));
    }

    /* Gradients */
@@ -1086,11 +1092,18 @@ void add_entry(char *key, char *value)
            panel_config.g_task.config_background_mask |= (1 << status);
            if (status == TASK_NORMAL)
                panel_config.g_task.area.bg = panel_config.g_task.background[TASK_NORMAL];
+            if (panel_config.g_task.background[status]->border_content_tint_weight > 0 ||
+                panel_config.g_task.background[status]->fill_content_tint_weight > 0)
+                panel_config.g_task.has_content_tint = TRUE;
        }
    }
    // "tooltip" is deprecated but here for backwards compatibility
    else if (strcmp(key, "task_tooltip") == 0 || strcmp(key, "tooltip") == 0)
        panel_config.g_task.tooltip_enabled = atoi(value);
+    else if (strcmp(key, "task_thumbnail") == 0)
+        panel_config.g_task.thumbnail_enabled = atoi(value);
+    else if (strcmp(key, "task_thumbnail_size") == 0)
+        panel_config.g_task.thumbnail_width = MAX(8, atoi(value));

    /* Systray */
    else if (strcmp(key, "systray_padding") == 0) {
@@ -1133,8 +1146,11 @@ void add_entry(char *key, char *value)
    } else if (strcmp(key, "systray_monitor") == 0) {
        systray_monitor = MAX(0, config_get_monitor(value));
    } else if (strcmp(key, "systray_name_filter") == 0) {
-        if (systray_hide_name_filter)
+        if (systray_hide_name_filter) {
+            fprintf(stderr, "tint2: Error: duplicate option 'systray_name_filter'. Please use it only once. See "
+                            "https://gitlab.com/o9000/tint2/issues/652\n");
            free(systray_hide_name_filter);
+        }
        systray_hide_name_filter = strdup(value);
    }

--- a/src/execplugin/execplugin.c
+++ b/src/execplugin/execplugin.c
@@ -70,11 +70,7 @@ void destroy_execp(void *obj)
        stop_timeout(execp->backend->timer);
        execp->backend->timer = NULL;

-        if (execp->backend->icon) {
-            imlib_context_set_image(execp->backend->icon);
-            imlib_free_image();
-            execp->backend->icon = NULL;
-        }
+        free_icon(execp->backend->icon);
        free_and_null(execp->backend->buf_stdout);
        free_and_null(execp->backend->buf_stderr);
        free_and_null(execp->backend->text);
@@ -109,7 +105,7 @@ void destroy_execp(void *obj)

        if (execp->backend->instances) {
            fprintf(stderr, "tint2: Error: Attempt to destroy backend while there are still frontend instances!\n");
-            exit(-1);
+            exit(EXIT_FAILURE);
        }
        free(execp->backend);
        free(execp);
--- a/src/init.c
+++ b/src/init.c
@@ -6,12 +6,18 @@
 #include <string.h>
 #include <unistd.h>

+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/extensions/XShm.h>
+
 #include "config.h"
 #include "drag_and_drop.h"
 #include "fps_distribution.h"
 #include "panel.h"
 #include "server.h"
 #include "signals.h"
+#include "test.h"
 #include "tooltip.h"
 #include "tracing.h"
 #include "uevent.h"
@@ -43,6 +49,9 @@ void handle_cli_arguments(int argc, char **argv)
        } else if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--version") == 0) {
            fprintf(stdout, "tint2 version %s\n", VERSION_STRING);
            exit(0);
+        } else if (strcmp(argv[i], "--test") == 0) {
+            run_all_tests();
+            exit(0);
        } else if (strcmp(argv[i], "-c") == 0) {
            if (i + 1 < argc) {
                i++;
@@ -75,7 +84,7 @@ void handle_cli_arguments(int argc, char **argv)
        }
        if (error) {
            print_usage();
-            exit(1);
+            exit(EXIT_FAILURE);
        }
    }
 }
@@ -88,6 +97,7 @@ void handle_env_vars()
    debug_fps = getenv("DEBUG_FPS") != NULL;
    debug_frames = getenv("DEBUG_FRAMES") != NULL;
    debug_dnd = getenv("DEBUG_DND") != NULL;
+    debug_thumbnails = getenv("DEBUG_THUMBNAILS") != NULL;
    if (debug_fps) {
        init_fps_distribution();
        char *s = getenv("TRACING_FPS_THRESHOLD");
@@ -184,7 +194,7 @@ void init_X11_pre_config()
    server.display = XOpenDisplay(NULL);
    if (!server.display) {
        fprintf(stderr, "tint2: could not open display!\n");
-        exit(1);
+        exit(EXIT_FAILURE);
    }
    server.x11_fd = ConnectionNumber(server.display);
    XSetErrorHandler((XErrorHandler)server_catch_error);
@@ -193,6 +203,7 @@ void init_X11_pre_config()
    server.screen = DefaultScreen(server.display);
    server.root_win = RootWindow(server.display, server.screen);
    server.desktop = get_current_desktop();
+    server.has_shm = XShmQueryExtension(server.display);

    // Needed since the config file uses '.' as decimal separator
    setlocale(LC_ALL, "");
@@ -251,6 +262,7 @@ void cleanup()
 #ifdef ENABLE_BATTERY
    cleanup_battery();
 #endif
+    cleanup_separator();
    cleanup_panel();
    cleanup_config();

--- a/src/main.c
+++ b/src/main.c
@@ -262,7 +262,7 @@ void handle_event_property_notify(XEvent *e)
        if (at == server.atom._NET_WM_VISIBLE_NAME || at == server.atom._NET_WM_NAME || at == server.atom.WM_NAME) {
            if (task_update_title(task)) {
                if (g_tooltip.mapped && (g_tooltip.area == (Area *)task)) {
-                    tooltip_copy_text((Area *)task);
+                    tooltip_update_contents_for((Area *)task);
                    tooltip_update();
                }
                if (taskbar_sort_method == TASKBAR_SORT_TITLE)
--- a/src/panel.c
+++ b/src/panel.c
@@ -58,6 +58,7 @@ char *panel_window_name = NULL;
 gboolean debug_geometry;
 gboolean debug_gradients;
 gboolean startup_notifications;
+gboolean debug_thumbnails;

 gboolean panel_autohide;
 int panel_autohide_show_timeout;
@@ -493,9 +494,11 @@ gboolean resize_panel(void *obj)
            }
        }

-        // Distribute the remaining size between tasks
+        // Distribute the remaining size between taskbars
        if (num_tasks > 0) {
            int task_size = total_size / num_tasks;
+            if (taskbar_alignment != ALIGN_LEFT)
+                task_size = MIN(task_size, panel_horizontal ? panel_config.g_task.maximum_width : panel_config.g_task.maximum_height);
            for (int i = 0; i < panel->num_desktops; i++) {
                Taskbar *taskbar = &panel->taskbar[i];
                if (!taskbar->area.on_screen)
@@ -512,6 +515,43 @@ gboolean resize_panel(void *obj)
                        taskbar->area.height += task_size;
                }
            }
+            int slack = total_size - task_size * num_tasks;
+            if (taskbar_alignment == ALIGN_RIGHT) {
+                for (int i = 0; i < panel->num_desktops; i++) {
+                    Taskbar *taskbar = &panel->taskbar[i];
+                    if (!taskbar->area.on_screen)
+                        continue;
+                    if (panel_horizontal)
+                        taskbar->area.width += slack;
+                    else
+                        taskbar->area.height += slack;
+                    break;
+                }
+            } else if (taskbar_alignment == ALIGN_CENTER) {
+                slack /= 2;
+                for (int i = 0; i < panel->num_desktops; i++) {
+                    Taskbar *taskbar = &panel->taskbar[i];
+                    if (!taskbar->area.on_screen)
+                        continue;
+                    if (panel_horizontal)
+                        taskbar->area.width += slack;
+                    else
+                        taskbar->area.height += slack;
+                    taskbar->area.alignment = ALIGN_RIGHT;
+                    break;
+                }
+                for (int i = panel->num_desktops - 1; i >= 0; i--) {
+                    Taskbar *taskbar = &panel->taskbar[i];
+                    if (!taskbar->area.on_screen)
+                        continue;
+                    if (panel_horizontal)
+                        taskbar->area.width += slack;
+                    else
+                        taskbar->area.height += slack;
+                    taskbar->area.alignment = ALIGN_LEFT;
+                    break;
+                }
+            }
        } else {
            // No tasks => expand the first visible taskbar
            for (int i = 0; i < panel->num_desktops; i++) {
--- a/src/panel.h
+++ b/src/panel.h
@@ -94,6 +94,7 @@ extern gboolean debug_geometry;
 extern gboolean debug_fps;
 extern double tracing_fps_threshold;
 extern gboolean debug_frames;
+extern gboolean debug_thumbnails;

 typedef struct Panel {
    Area area;
--- a/src/taskbar/task.c
+++ b/src/taskbar/task.c
@@ -40,6 +40,8 @@ GSList *urgent_list;

 void task_dump_geometry(void *obj, int indent);
 int task_compute_desired_size(void *obj);
+void task_refresh_thumbnail(Task *task);
+void task_get_content_color(void *obj, Color *color);

 char *task_get_tooltip(void *obj)
 {
@@ -47,6 +49,17 @@ char *task_get_tooltip(void *obj)
    return strdup(t->title);
 }

+cairo_surface_t *task_get_thumbnail(void *obj)
+{
+    if (!panel_config.g_task.thumbnail_enabled)
+        return NULL;
+    Task *t = (Task *)obj;
+    if (!t->thumbnail)
+        task_refresh_thumbnail(t);
+    taskbar_start_thumbnail_timer(THUMB_MODE_TOOLTIP_WINDOW);
+    return t->thumbnail;
+}
+
 Task *add_task(Window win)
 {
    if (!win)
@@ -73,6 +86,7 @@ Task *add_task(Window win)
    task_template.area.has_mouse_press_effect = panel_config.mouse_effects;
    task_template.area._dump_geometry = task_dump_geometry;
    task_template.area._is_under_mouse = full_width_area_is_under_mouse;
+    task_template.area._get_content_color = task_get_content_color;
    task_template.win = win;
    task_template.desktop = get_window_desktop(win);
    task_template.area.panel = &panels[monitor];
@@ -93,10 +107,6 @@ Task *add_task(Window win)
             (int)win,
             task_template.title ? task_template.title : "null");

-    // fprintf(stderr, "tint2: %s %d: win = %ld, task = %s\n", __func__, __LINE__, win, task_template.title ?
-    // task_template.title : "??");
-    // fprintf(stderr, "tint2: new task %s win %u: desktop %d, monitor %d\n", new_task.title, win, new_task.desktop, monitor);
-
    GPtrArray *task_buttons = g_ptr_array_new();
    for (int j = 0; j < panels[monitor].num_desktops; j++) {
        if (task_template.desktop != ALL_DESKTOPS && task_template.desktop != j)
@@ -110,6 +120,7 @@ Task *add_task(Window win)
        task_instance->area._dump_geometry = task_dump_geometry;
        task_instance->area._is_under_mouse = full_width_area_is_under_mouse;
        task_instance->area._compute_desired_size = task_compute_desired_size;
+        task_instance->area._get_content_color = task_get_content_color;
        task_instance->win = task_template.win;
        task_instance->desktop = task_template.desktop;
        task_instance->win_x = task_template.win_x;
@@ -118,12 +129,16 @@ Task *add_task(Window win)
        task_instance->win_h = task_template.win_h;
        task_instance->current_state = TASK_UNDEFINED; // to update the current state later in set_task_state...
        if (task_instance->desktop == ALL_DESKTOPS && server.desktop != j) {
-            // fprintf(stderr, "tint2: %s %d: win = %ld hiding task: another desktop\n", __func__, __LINE__, win);
            task_instance->area.on_screen = always_show_all_desktop_tasks;
        }
        task_instance->title = task_template.title;
-        if (panels[monitor].g_task.tooltip_enabled)
+        if (panels[monitor].g_task.tooltip_enabled) {
            task_instance->area._get_tooltip_text = task_get_tooltip;
+            task_instance->area._get_tooltip_image = task_get_thumbnail;
+        }
+        task_instance->icon_color = task_template.icon_color;
+        task_instance->icon_color_hover = task_template.icon_color_hover;
+        task_instance->icon_color_press = task_template.icon_color_press;
        for (int k = 0; k < TASK_STATE_COUNT; ++k) {
            task_instance->icon[k] = task_template.icon[k];
            task_instance->icon_hover[k] = task_template.icon_hover[k];
@@ -186,9 +201,6 @@ void remove_task(Task *task)
    if (!task)
        return;

-    // fprintf(stderr, "tint2: %s %d: win = %ld, task = %s\n", __func__, __LINE__, task->win, task->title ? task->title :
-    // "??");
-
    if (taskbar_mode == MULTI_DESKTOP) {
        Panel *panel = task->area.panel;
        panel->area.resize_needed = 1;
@@ -198,9 +210,10 @@ void remove_task(Task *task)

    // free title and icon just for the first task
    // even with task_on_all_desktop and with task_on_all_panel
-    // fprintf(stderr, "tint2: remove_task %s %d\n", task->title, task->desktop);
    if (task->title)
        free(task->title);
+    if (task->thumbnail)
+        cairo_surface_destroy(task->thumbnail);
    task_remove_icon(task);

    GPtrArray *task_buttons = g_hash_table_lookup(win_to_task, &win);
@@ -212,6 +225,8 @@ void remove_task(Task *task)
            task_drag = 0;
        if (g_slist_find(urgent_list, task2))
            del_urgent(task2);
+        if (g_tooltip.area == &task2->area)
+            tooltip_hide(NULL);
        remove_area((Area *)task2);
        free(task2);
    }
@@ -266,36 +281,23 @@ gboolean task_update_title(Task *task)
    return TRUE;
 }

-void task_update_icon(Task *task)
+Imlib_Image task_get_icon(Window win, int icon_size)
 {
-    Panel *panel = task->area.panel;
-    if (!panel->g_task.has_icon)
-        return;
-
-    task_remove_icon(task);
-
    Imlib_Image img = NULL;

    if (!img) {
        int len;
-        gulong *data = server_get_property(task->win, server.atom._NET_WM_ICON, XA_CARDINAL, &len);
+        gulong *data = server_get_property(win, server.atom._NET_WM_ICON, XA_CARDINAL, &len);
        if (data) {
            if (len > 0) {
                // get ARGB icon
                int w, h;
-                gulong *tmp_data = get_best_icon(data, get_icon_count(data, len), len, &w, &h, panel->g_task.icon_size1);
+                gulong *tmp_data = get_best_icon(data, get_icon_count(data, len), len, &w, &h, icon_size);
                if (tmp_data) {
                    DATA32 icon_data[w * h];
                    for (int j = 0; j < w * h; ++j)
                        icon_data[j] = tmp_data[j];
                    img = imlib_create_image_using_copied_data(w, h, icon_data);
-                    if (0 && img)
-                        fprintf(stderr,
-                                "%s: Got %dx%d icon via _NET_WM_ICON for %s\n",
-                                __func__,
-                                w,
-                                h,
-                                task->title ? task->title : "task");
                }
            }
            XFree(data);
@@ -303,7 +305,7 @@ void task_update_icon(Task *task)
    }

    if (!img) {
-        XWMHints *hints = XGetWMHints(server.display, task->win);
+        XWMHints *hints = XGetWMHints(server.display, win);
        if (hints) {
            if (hints->flags & IconPixmapHint && hints->icon_pixmap != 0) {
                // get width, height and depth for the pixmap
@@ -315,13 +317,6 @@ void task_update_icon(Task *task)
                XGetGeometry(server.display, hints->icon_pixmap, &root, &icon_x, &icon_y, &w, &h, &border_width, &bpp);
                imlib_context_set_drawable(hints->icon_pixmap);
                img = imlib_create_image_from_drawable(hints->icon_mask, 0, 0, w, h, 0);
-                if (0 && img)
-                    fprintf(stderr,
-                            "%s: Got %dx%d pixmap icon via WM_HINTS for %s\n",
-                            __func__,
-                            w,
-                            h,
-                            task->title ? task->title : "task");
            }
            XFree(hints);
        }
@@ -332,6 +327,44 @@ void task_update_icon(Task *task)
        img = imlib_clone_image();
    }

+    return img;
+}
+
+void task_set_icon_color(Task *task, Imlib_Image icon)
+{
+    get_image_mean_color(icon, &task->icon_color);
+    if (panel_config.mouse_effects) {
+        task->icon_color_hover = task->icon_color;
+        adjust_color(&task->icon_color_hover,
+                     panel_config.mouse_over_alpha,
+                     panel_config.mouse_over_saturation,
+                     panel_config.mouse_over_brightness);
+        task->icon_color_press = task->icon_color;
+        adjust_color(&task->icon_color_press,
+                     panel_config.mouse_pressed_alpha,
+                     panel_config.mouse_pressed_saturation,
+                     panel_config.mouse_pressed_brightness);
+    }
+}
+
+void task_update_icon(Task *task)
+{
+    Panel *panel = task->area.panel;
+    if (!panel->g_task.has_icon) {
+        if (panel_config.g_task.has_content_tint) {
+            Imlib_Image img = task_get_icon(task->win, panel->g_task.icon_size1);
+            task_set_icon_color(task, img);
+            imlib_context_set_image(img);
+            imlib_free_image();
+        }
+        return;
+    }
+
+    task_remove_icon(task);
+
+    Imlib_Image img = task_get_icon(task->win, panel->g_task.icon_size1);
+    task_set_icon_color(task, img);
+
    // transform icons
    imlib_context_set_image(img);
    imlib_image_set_has_alpha(1);
@@ -345,20 +378,10 @@ void task_update_icon(Task *task)
    task->icon_width = imlib_image_get_width();
    task->icon_height = imlib_image_get_height();
    for (int k = 0; k < TASK_STATE_COUNT; ++k) {
-        imlib_context_set_image(orig_image);
-        task->icon[k] = imlib_clone_image();
-        imlib_context_set_image(task->icon[k]);
-        DATA32 *data32;
-        if (panel->g_task.alpha[k] != 100 || panel->g_task.saturation[k] != 0 || panel->g_task.brightness[k] != 0) {
-            data32 = imlib_image_get_data();
-            adjust_asb(data32,
-                       task->icon_width,
-                       task->icon_height,
-                       panel->g_task.alpha[k] / 100.0,
-                       panel->g_task.saturation[k] / 100.0,
-                       panel->g_task.brightness[k] / 100.0);
-            imlib_image_put_back_data(data32);
-        }
+        task->icon[k] = adjust_icon(orig_image,
+                                    panel->g_task.alpha[k],
+                                    panel->g_task.saturation[k],
+                                    panel->g_task.brightness[k] != 0);
        if (panel_config.mouse_effects) {
            task->icon_hover[k] = adjust_icon(task->icon[k],
                                              panel_config.mouse_over_alpha,
@@ -376,9 +399,12 @@ void task_update_icon(Task *task)
    GPtrArray *task_buttons = get_task_buttons(task->win);
    if (task_buttons) {
        for (int i = 0; i < task_buttons->len; ++i) {
-            Task *task2 = g_ptr_array_index(task_buttons, i);
+            Task *task2 = (Task *)g_ptr_array_index(task_buttons, i);
            task2->icon_width = task->icon_width;
            task2->icon_height = task->icon_height;
+            task2->icon_color = task->icon_color;
+            task2->icon_color_hover = task->icon_color_hover;
+            task2->icon_color_press = task->icon_color_press;
            for (int k = 0; k < TASK_STATE_COUNT; ++k) {
                task2->icon[k] = task->icon[k];
                task2->icon_hover[k] = task->icon_hover[k];
@@ -484,6 +510,24 @@ void task_dump_geometry(void *obj, int indent)
            panel->g_task.icon_size1);
 }

+void task_get_content_color(void *obj, Color *color)
+{
+    Task *task = (Task *)obj;
+    Color *content_color = NULL;
+    if (panel_config.mouse_effects) {
+        if (task->area.mouse_state == MOUSE_OVER)
+            content_color = &task->icon_color_hover;
+        else if (task->area.mouse_state == MOUSE_DOWN)
+            content_color = &task->icon_color_press;
+        else
+            content_color = &task->icon_color;
+    } else {
+        content_color = &task->icon_color;
+    }
+    if (content_color)
+        *color = *content_color;
+}
+
 int task_compute_desired_size(void *obj)
 {
    Task *task = (Task *)obj;
@@ -591,7 +635,6 @@ void reset_active_task()
    }

    Window w1 = get_active_window();
-    // fprintf(stderr, "tint2: Change active task %ld\n", w1);

    if (w1) {
        if (!get_task_buttons(w1)) {
@@ -603,11 +646,49 @@ void reset_active_task()
    }
 }

+void task_refresh_thumbnail(Task *task)
+{
+    if (!panel_config.g_task.thumbnail_enabled)
+        return;
+    if (task->current_state == TASK_ICONIFIED)
+        return;
+    double now = get_time();
+    if (now - task->thumbnail_last_update < 0.1)
+        return;
+    if (debug_thumbnails)
+        fprintf(stderr, "tint2: thumbnail for window: %s" RESET "\n", task->title ? task->title : "");
+    cairo_surface_t *thumbnail = get_window_thumbnail(task->win, panel_config.g_task.thumbnail_width);
+    if (!thumbnail)
+        return;
+    if (task->thumbnail)
+        cairo_surface_destroy(task->thumbnail);
+    task->thumbnail = thumbnail;
+    task->thumbnail_last_update = get_time();
+    if (debug_thumbnails)
+        fprintf(stderr,
+                YELLOW "tint2: %s took %f ms (window: %s)" RESET "\n",
+                __func__,
+                1000 * (task->thumbnail_last_update - now),
+                task->title ? task->title : "");
+    if (g_tooltip.mapped && (g_tooltip.area == &task->area)) {
+        tooltip_update_contents_for(&task->area);
+        tooltip_update();
+    }
+}
+
 void set_task_state(Task *task, TaskState state)
 {
    if (!task || state == TASK_UNDEFINED || state >= TASK_STATE_COUNT)
        return;

+    if (!task->thumbnail)
+        task_refresh_thumbnail(task);
+    if (state == TASK_ACTIVE) {
+        // For active windows, we get the thumbnail twice with a small delay in between.
+        // This is because they sometimes redraw their windows slowly.
+        taskbar_start_thumbnail_timer(THUMB_MODE_ACTIVE_WINDOW);
+    }
+
    if (state == TASK_ACTIVE && task->current_state != state) {
        clock_gettime(CLOCK_MONOTONIC, &task->last_activation_time);
        if (taskbar_sort_method == TASKBAR_SORT_LRU || taskbar_sort_method == TASKBAR_SORT_MRU) {
@@ -783,7 +864,6 @@ void task_handle_mouse_event(Task *task, MouseAction action)

 void task_update_desktop(Task *task)
 {
-    // fprintf(stderr, "tint2: %s %d:\n", __func__, __LINE__);
    Window win = task->win;
    remove_task(task);
    task = add_task(win);
--- a/src/taskbar/task.h
+++ b/src/taskbar/task.h
@@ -42,10 +42,13 @@ typedef struct GlobalTask {
    // starting position for text ~ task_padding + task_border + icon_size
    double text_posx, text_height;
    gboolean has_font;
+    gboolean has_content_tint;
    PangoFontDescription *font_desc;
    Color font[TASK_STATE_COUNT];
    int config_font_mask;
    gboolean tooltip_enabled;
+    gboolean thumbnail_enabled;
+    int thumbnail_width;
 } GlobalTask;

 // Stores information about a task.
@@ -61,6 +64,9 @@ typedef struct Task {
    Imlib_Image icon_press[TASK_STATE_COUNT];
    unsigned int icon_width;
    unsigned int icon_height;
+    Color icon_color;
+    Color icon_color_hover;
+    Color icon_color_press;
    char *title;
    int urgent_tick;
    // These may not be up-to-date
@@ -74,6 +80,8 @@ typedef struct Task {
    double _text_posy;
    int _icon_x;
    int _icon_y;
+    cairo_surface_t *thumbnail;
+    double thumbnail_last_update;
 } Task;

 extern timeout *urgent_timeout;
@@ -91,6 +99,7 @@ gboolean task_update_title(Task *task);
 void reset_active_task();
 void set_task_state(Task *task, TaskState state);
 void task_handle_mouse_event(Task *task, MouseAction action);
+void task_refresh_thumbnail(Task *task);

 // Given a pointer to the task that is currently under the mouse (current_task),
 // returns a pointer to the Task for the active window on the same taskbar.
--- a/src/taskbar/taskbar.c
+++ b/src/taskbar/taskbar.c
@@ -32,6 +32,7 @@
 #include "window.h"
 #include "panel.h"
 #include "strnatcmp.h"
+#include "tooltip.h"

 GHashTable *win_to_task;

@@ -46,8 +47,12 @@ gboolean hide_taskbar_if_empty;
 gboolean always_show_all_desktop_tasks;
 TaskbarSortMethod taskbar_sort_method;
 Alignment taskbar_alignment;
+static timeout *thumbnail_update_timer_all;
+static timeout *thumbnail_update_timer_active;
+static timeout *thumbnail_update_timer_tooltip;

 static GList *taskbar_task_orderings = NULL;
+static GList *taskbar_thumbnail_jobs_done = NULL;

 void taskbar_init_fonts();
 int taskbar_compute_desired_size(void *obj);
@@ -55,6 +60,8 @@ int taskbar_compute_desired_size(void *obj);
 // Removes the task with &win = key. The other args are ignored.
 void taskbar_remove_task(Window *win);

+void taskbar_update_thumbnails(void *arg);
+
 guint win_hash(gconstpointer key)
 {
    return *((const Window *)key);
@@ -82,6 +89,10 @@ void default_taskbar()
    hide_task_diff_monitor = FALSE;
    hide_taskbar_if_empty = FALSE;
    always_show_all_desktop_tasks = FALSE;
+    thumbnail_update_timer_all = NULL;
+    thumbnail_update_timer_active = NULL;
+    thumbnail_update_timer_tooltip = NULL;
+    taskbar_thumbnail_jobs_done = NULL;
    taskbar_sort_method = TASKBAR_NOSORT;
    taskbar_alignment = ALIGN_LEFT;
    default_taskbarname();
@@ -107,7 +118,10 @@ void taskbar_save_orderings()
        for (int j = 0; j < panel->num_desktops; j++) {
            Taskbar *taskbar = &panel->taskbar[j];
            GList *task_order = NULL;
-            for (GList *c = (taskbar->area.children && taskbarname_enabled) ? taskbar->area.children->next : taskbar->area.children; c; c = c->next) {
+            for (GList *c = (taskbar->area.children && taskbarname_enabled) ? taskbar->area.children->next
+                                                                            : taskbar->area.children;
+                 c;
+                 c = c->next) {
                Task *t = (Task *)c->data;
                Window *window = calloc(1, sizeof(Window));
                *window = t->win;
@@ -120,6 +134,10 @@ void taskbar_save_orderings()

 void cleanup_taskbar()
 {
+    stop_timeout(thumbnail_update_timer_all);
+    stop_timeout(thumbnail_update_timer_active);
+    stop_timeout(thumbnail_update_timer_tooltip);
+    g_list_free(taskbar_thumbnail_jobs_done);
    taskbar_save_orderings();
    if (win_to_task) {
        while (g_hash_table_size(win_to_task)) {
@@ -170,6 +188,9 @@ void init_taskbar()
        panel_config.g_task.has_text = panel_config.g_task.has_icon = 1;
    }

+    if (panel_config.g_task.thumbnail_width < 8)
+        panel_config.g_task.thumbnail_width = 210;
+
    if (!win_to_task)
        win_to_task = g_hash_table_new_full(win_hash, win_compare, free, free_ptr_array);

@@ -301,8 +322,9 @@ void init_taskbar_panel(void *p)
        if (!panel->g_task.background[j])
            panel->g_task.background[j] = &g_array_index(backgrounds, Background, 0);
        if (panel->g_task.background[j]->border.radius > panel->g_task.area.height / 2) {
-            fprintf(stderr, "tint2: task%sbackground_id has a too large rounded value. Please fix your tint2rc\n",
-                   j == 0 ? "_" : j == 1 ? "_active_" : j == 2 ? "_iconified_" : "_urgent_");
+            fprintf(stderr,
+                    "tint2: task%sbackground_id has a too large rounded value. Please fix your tint2rc\n",
+                    j == 0 ? "_" : j == 1 ? "_active_" : j == 2 ? "_iconified_" : "_urgent_");
            g_array_append_val(backgrounds, *panel->g_task.background[j]);
            panel->g_task.background[j] = &g_array_index(backgrounds, Background, backgrounds->len - 1);
            panel->g_task.background[j]->border.radius = panel->g_task.area.height / 2;
@@ -353,6 +375,21 @@ void init_taskbar_panel(void *p)
        }
    }
    init_taskbarname_panel(panel);
+    taskbar_start_thumbnail_timer(THUMB_MODE_ALL);
+}
+
+void taskbar_start_thumbnail_timer(ThumbnailUpdateMode mode)
+{
+    if (!panel_config.g_task.thumbnail_enabled)
+        return;
+    if (debug_thumbnails)
+        fprintf(stderr, BLUE "tint2: taskbar_start_thumbnail_timer %s" RESET "\n", mode == THUMB_MODE_ACTIVE_WINDOW ? "active" : mode == THUMB_MODE_TOOLTIP_WINDOW ? "tooltip" : "all");
+    change_timeout(mode == THUMB_MODE_ALL ? &thumbnail_update_timer_all :
+                                            mode == THUMB_MODE_ACTIVE_WINDOW ? &thumbnail_update_timer_active : &thumbnail_update_timer_tooltip,
+                   mode == THUMB_MODE_TOOLTIP_WINDOW ? 1000 : 500,
+                   mode == THUMB_MODE_ALL ? 10 * 1000 : 0,
+                   taskbar_update_thumbnails,
+                   (void *)(long)mode);
 }

 void taskbar_init_fonts()
@@ -422,8 +459,8 @@ int compare_windows(const void *a, const void *b)
    if (!sort_windows)
        return 0;

-    int ia = *(int*)a;
-    int ib = *(int*)b;
+    int ia = *(int *)a;
+    int ib = *(int *)b;

    Window wina = sort_windows[ia];
    Window winb = sort_windows[ib];
@@ -433,7 +470,7 @@ int compare_windows(const void *a, const void *b)
        int posb = -1;
        int pos = 0;
        for (GList *item = (GList *)order->data; item; item = item->next, pos++) {
-            Window win = *(Window*)item->data;
+            Window win = *(Window *)item->data;
            if (win == wina)
                posa = pos;
            if (win == winb)
@@ -467,7 +504,6 @@ void taskbar_refresh_tasklist()
 {
    if (!taskbar_enabled)
        return;
-    // fprintf(stderr, "tint2: %s %d:\n", __func__, __LINE__);

    int num_results;
    Window *win = server_get_property(server.root_win, server.atom._NET_CLIENT_LIST, XA_WINDOW, &num_results);
@@ -521,7 +557,6 @@ gboolean resize_taskbar(void *obj)
    Taskbar *taskbar = (Taskbar *)obj;
    Panel *panel = (Panel *)taskbar->area.panel;

-    // fprintf(stderr, "tint2: resize_taskbar %d %d\n", taskbar->area.posx, taskbar->area.posy);
    if (panel_horizontal) {
        relayout_with_constraint(&taskbar->area, panel->g_task.maximum_width);

@@ -779,3 +814,48 @@ void update_minimized_icon_positions(void *p)
        }
    }
 }
+
+void taskbar_update_thumbnails(void *arg)
+{
+    if (!panel_config.g_task.thumbnail_enabled)
+        return;
+    ThumbnailUpdateMode mode = (ThumbnailUpdateMode)(long)arg;
+    if (debug_thumbnails)
+        fprintf(stderr, BLUE "tint2: taskbar_update_thumbnails %s" RESET "\n", mode == THUMB_MODE_ACTIVE_WINDOW ? "active" : mode == THUMB_MODE_TOOLTIP_WINDOW ? "tooltip" : "all");
+    double start_time = get_time();
+    for (int i = 0; i < num_panels; i++) {
+        Panel *panel = &panels[i];
+        for (int j = 0; j < panel->num_desktops; j++) {
+            Taskbar *taskbar = &panel->taskbar[j];
+            for (GList *c = (taskbar->area.children && taskbarname_enabled) ? taskbar->area.children->next
+                                                                            : taskbar->area.children;
+                 c;
+                 c = c->next) {
+                Task *t = (Task *)c->data;
+                if ((mode == THUMB_MODE_ALL && t->current_state == TASK_ACTIVE && !g_list_find(taskbar_thumbnail_jobs_done, t)) || (mode == THUMB_MODE_ACTIVE_WINDOW && t->current_state == TASK_ACTIVE) ||
+                    (mode == THUMB_MODE_TOOLTIP_WINDOW && g_tooltip.mapped && g_tooltip.area == &t->area)) {
+                    task_refresh_thumbnail(t);
+                    if (mode == THUMB_MODE_ALL)
+                        taskbar_thumbnail_jobs_done = g_list_append(taskbar_thumbnail_jobs_done, t);
+                    if (t->thumbnail && mode == THUMB_MODE_TOOLTIP_WINDOW) {
+                        taskbar_start_thumbnail_timer(THUMB_MODE_TOOLTIP_WINDOW);
+                    }
+                }
+                if (mode == THUMB_MODE_ALL) {
+                    double now = get_time();
+                    if (now - start_time > 0.030) {
+                        change_timeout(&thumbnail_update_timer_all, 50, 10 * 1000, taskbar_update_thumbnails, arg);
+                        return;
+                    }
+                }
+            }
+        }
+    }
+    if (mode == THUMB_MODE_ALL) {
+        if (taskbar_thumbnail_jobs_done) {
+            g_list_free(taskbar_thumbnail_jobs_done);
+            taskbar_thumbnail_jobs_done = NULL;
+            change_timeout(&thumbnail_update_timer_all, 10 * 1000, 10 * 1000, taskbar_update_thumbnails, arg);
+        }
+    }
+}
--- a/src/taskbar/taskbar.h
+++ b/src/taskbar/taskbar.h
@@ -25,6 +25,12 @@ typedef enum TaskbarSortMethod {
    TASKBAR_SORT_MRU,
 } TaskbarSortMethod;

+typedef enum ThumbnailUpdateMode {
+    THUMB_MODE_ACTIVE_WINDOW = 0,
+    THUMB_MODE_TOOLTIP_WINDOW,
+    THUMB_MODE_ALL
+} ThumbnailUpdateMode;
+
 typedef struct {
    Area area;
    gchar *name;
@@ -72,6 +78,7 @@ void init_taskbar_panel(void *p);

 gboolean resize_taskbar(void *obj);
 void taskbar_default_font_changed();
+void taskbar_start_thumbnail_timer(ThumbnailUpdateMode mode);

 // Reloads the entire list of tasks from the window manager and recreates the task buttons.
 void taskbar_refresh_tasklist();
--- a/src/tint2conf/CMakeLists.txt
+++ b/src/tint2conf/CMakeLists.txt
@@ -24,7 +24,7 @@ set(SOURCES ../util/common.c
            ../util/cache.c
            ../util/timer.c
            ../config.c
-            ../server.c
+            ../util/server.c
            ../launcher/apps-common.c
            ../launcher/icon-theme-common.c
            md4.c
--- a/src/tint2conf/background_gui.c
+++ b/src/tint2conf/background_gui.c
@@ -6,7 +6,7 @@ GtkWidget *current_background, *background_fill_color, *background_border_color,
    *background_fill_color_over, *background_border_color_over, *background_gradient_over, *background_fill_color_press,
    *background_border_color_press, *background_gradient_press, *background_border_width, *background_corner_radius,
    *background_border_sides_top, *background_border_sides_bottom, *background_border_sides_left,
-    *background_border_sides_right;
+    *background_border_sides_right, *background_border_content_tint_weight, *background_fill_content_tint_weight;

 GtkWidget *create_background_combo(const char *label)
 {
@@ -115,7 +115,9 @@ void create_background(GtkWidget *parent)
                                     GTK_TYPE_BOOL,
                                     GTK_TYPE_BOOL,
                                     GTK_TYPE_BOOL,
-                                     GTK_TYPE_BOOL);
+                                     GTK_TYPE_BOOL,
+                                     GTK_TYPE_DOUBLE,
+                                     GTK_TYPE_DOUBLE);

    GtkWidget *table, *label, *button;
    int row, col;
@@ -175,6 +177,19 @@ void create_background(GtkWidget *parent)
    col++;
    gtk_tooltips_set_tip(tooltips, background_fill_color, _("The fill color of the current background"), NULL);

+    row++, col = 2;
+    label = gtk_label_new(_("Fill tint"));
+    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+    gtk_widget_show(label);
+    gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
+    background_fill_content_tint_weight = gtk_spin_button_new_with_range(0, 100, 1);
+    gtk_widget_show(background_fill_content_tint_weight);
+    gtk_table_attach(GTK_TABLE(table), background_fill_content_tint_weight, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+    gtk_tooltips_set_tip(tooltips, background_fill_content_tint_weight, _("How much the border color should be tinted with the content color"), NULL);
+
    row++, col = 2;
    label = gtk_label_new(_("Border color"));
    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
@@ -189,6 +204,19 @@ void create_background(GtkWidget *parent)
    col++;
    gtk_tooltips_set_tip(tooltips, background_border_color, _("The border color of the current background"), NULL);

+    row++, col = 2;
+    label = gtk_label_new(_("Border tint"));
+    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+    gtk_widget_show(label);
+    gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
+    background_border_content_tint_weight = gtk_spin_button_new_with_range(0, 100, 1);
+    gtk_widget_show(background_border_content_tint_weight);
+    gtk_table_attach(GTK_TABLE(table), background_border_content_tint_weight, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+    gtk_tooltips_set_tip(tooltips, background_border_content_tint_weight, _("How much the border color should be tinted with the content color"), NULL);
+
    row++, col = 2;
    label = gtk_label_new(_("Gradient"));
    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
@@ -366,6 +394,8 @@ void create_background(GtkWidget *parent)
    g_signal_connect(G_OBJECT(background_border_sides_bottom), "toggled", G_CALLBACK(background_update), NULL);
    g_signal_connect(G_OBJECT(background_border_sides_left), "toggled", G_CALLBACK(background_update), NULL);
    g_signal_connect(G_OBJECT(background_border_sides_right), "toggled", G_CALLBACK(background_update), NULL);
+    g_signal_connect(G_OBJECT(background_border_content_tint_weight), "value-changed", G_CALLBACK(background_update), NULL);
+    g_signal_connect(G_OBJECT(background_fill_content_tint_weight), "value-changed", G_CALLBACK(background_update), NULL);

    change_paragraph(parent);
 }
@@ -750,6 +780,9 @@ void background_update(GtkWidget *widget, gpointer data)
    r = gtk_spin_button_get_value(GTK_SPIN_BUTTON(background_corner_radius));
    b = gtk_spin_button_get_value(GTK_SPIN_BUTTON(background_border_width));

+    double fill_weight = gtk_spin_button_get_value(GTK_SPIN_BUTTON(background_fill_content_tint_weight));
+    double border_weight = gtk_spin_button_get_value(GTK_SPIN_BUTTON(background_border_content_tint_weight));
+
    gboolean sideTop = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(background_border_sides_top));
    gboolean sideBottom = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(background_border_sides_bottom));
    gboolean sideLeft = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(background_border_sides_left));
@@ -836,6 +869,10 @@ void background_update(GtkWidget *widget, gpointer data)
                       sideLeft,
                       bgColBorderSidesRight,
                       sideRight,
+                       bgColFillWeight,
+                       fill_weight,
+                       bgColBorderWeight,
+                       border_weight,
                       -1);
    background_update_image(index);
 }
@@ -862,6 +899,8 @@ void current_background_changed(GtkWidget *widget, gpointer data)
    gtk_widget_set_sensitive(background_border_sides_left, index > 0);
    gtk_widget_set_sensitive(background_border_sides_right, index > 0);
    gtk_widget_set_sensitive(background_corner_radius, index > 0);
+    gtk_widget_set_sensitive(background_border_content_tint_weight, index > 0);
+    gtk_widget_set_sensitive(background_fill_content_tint_weight, index > 0);

    background_updates_disabled = TRUE;

@@ -875,6 +914,9 @@ void current_background_changed(GtkWidget *widget, gpointer data)
    int r;
    int b;

+    double fill_weight;
+    double border_weight;
+
    gboolean sideTop;
    gboolean sideBottom;
    gboolean sideLeft;
@@ -938,6 +980,10 @@ void current_background_changed(GtkWidget *widget, gpointer data)
                       &sideLeft,
                       bgColBorderSidesRight,
                       &sideRight,
+                       bgColFillWeight,
+                       &fill_weight,
+                       bgColBorderWeight,
+                       &border_weight,
                       -1);

    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(background_border_sides_top), sideTop);
@@ -968,6 +1014,9 @@ void current_background_changed(GtkWidget *widget, gpointer data)
    gtk_spin_button_set_value(GTK_SPIN_BUTTON(background_border_width), b);
    gtk_spin_button_set_value(GTK_SPIN_BUTTON(background_corner_radius), r);

+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(background_fill_content_tint_weight), fill_weight);
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(background_border_content_tint_weight), border_weight);
+
    g_boxed_free(GDK_TYPE_COLOR, fillColor);
    g_boxed_free(GDK_TYPE_COLOR, borderColor);
    g_boxed_free(GDK_TYPE_COLOR, fillColorOver);
--- a/src/tint2conf/po/bs.po
+++ b/src/tint2conf/po/bs.po
--- a/src/tint2conf/po/es.po
+++ b/src/tint2conf/po/es.po
--- a/src/tint2conf/po/fr.po
+++ b/src/tint2conf/po/fr.po
--- a/src/tint2conf/po/hr.po
+++ b/src/tint2conf/po/hr.po
--- a/src/tint2conf/po/pl.po
+++ b/src/tint2conf/po/pl.po
--- a/src/tint2conf/po/ru.po
+++ b/src/tint2conf/po/ru.po
--- a/src/tint2conf/po/sr.po
+++ b/src/tint2conf/po/sr.po
--- a/src/tint2conf/po/tint2conf.pot
+++ b/src/tint2conf/po/tint2conf.pot
--- a/src/tint2conf/po/update-translations.sh
+++ b/src/tint2conf/po/update-translations.sh
@@ -15,3 +15,22 @@ do
  cat ${lang}.pox > ${lang}.po
  rm ${lang}.pox
 done
+
+set +e
+set +x
+echo "Status:"
+for f in *.po
+do
+  lang=$(basename $f .po)
+  fuzzy=$(cat ${lang}.po | grep -A2 "#, fuzzy")
+  missing=$(cat ${lang}.po | grep -B1 'msgstr  ""')
+  if [ -z "$fuzzy" ] && [ -z "$missing" ]
+  then
+    echo $lang ": Up to date"
+  else
+    count=$(( $(echo -e "$fuzzy" "\n" "$missing" | grep "^--$" | wc -l) + 1))
+    echo "${lang}: Translation incomplete: ${count} strings to be updated. See ${lang}.todo"
+    echo "$fuzzy" > ${lang}.todo
+    echo "$missing" >> ${lang}.todo
+  fi
+done
--- a/src/tint2conf/properties.c
+++ b/src/tint2conf/properties.c
@@ -97,7 +97,7 @@ GtkWidget *systray_background, *systray_monitor, *systray_name_filter;

 // tooltip
 GtkWidget *tooltip_padding_x, *tooltip_padding_y, *tooltip_font, *tooltip_font_set, *tooltip_font_color;
-GtkWidget *tooltip_task_show, *tooltip_show_after, *tooltip_hide_after;
+GtkWidget *tooltip_task_show, *tooltip_show_after, *tooltip_hide_after, *tooltip_task_thumbnail, *tooltip_task_thumbnail_size;
 GtkWidget *clock_format_tooltip, *clock_tmz_tooltip;
 GtkWidget *tooltip_background;

@@ -3288,6 +3288,36 @@ void create_task(GtkWidget *parent)
                           "over task buttons."),
                         NULL);

+    row++, col = 2;
+    label = gtk_label_new(_("Thumbnails"));
+    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+    gtk_widget_show(label);
+    gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
+    tooltip_task_thumbnail = gtk_check_button_new();
+    gtk_widget_show(tooltip_task_thumbnail);
+    gtk_table_attach(GTK_TABLE(table), tooltip_task_thumbnail, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+    gtk_tooltips_set_tip(tooltips,
+                         tooltip_task_thumbnail,
+                         _("If enabled, a tooltip showing the window thumbnail is displayed when the mouse cursor moves "
+                           "over task buttons."),
+                         NULL);
+
+    row++, col = 2;
+    label = gtk_label_new(_("Thumbnail size"));
+    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+    gtk_widget_show(label);
+    gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
+    tooltip_task_thumbnail_size = gtk_spin_button_new_with_range(8, 9000, 1);
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(tooltip_task_thumbnail_size), 210);
+    gtk_widget_show(tooltip_task_thumbnail_size);
+    gtk_table_attach(GTK_TABLE(table), tooltip_task_thumbnail_size, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
    row++, col = 2;
    label = gtk_label_new(_("Maximum width"));
    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
@@ -5136,8 +5166,8 @@ void create_systemtray(GtkWidget *parent)
                         _("Specifies the order used to arrange the system tray icons. \n"
                           "'Ascending' means that icons are sorted in ascending order of their window names. \n"
                           "'Descending' means that icons are sorted in descending order of their window names. \n"
-                           "'Left to right' means that icons are always added to the left. \n"
-                           "'Right to left' means that icons are always added to the right."),
+                           "'Left to right' means that icons are always added to the right. \n"
+                           "'Right to left' means that icons are always added to the left."),
                         NULL);

    row++;
--- a/src/tint2conf/properties.h
+++ b/src/tint2conf/properties.h
@@ -105,7 +105,7 @@ extern GtkWidget *systray_background, *systray_monitor, *systray_name_filter;

 // tooltip
 extern GtkWidget *tooltip_padding_x, *tooltip_padding_y, *tooltip_font, *tooltip_font_set, *tooltip_font_color;
-extern GtkWidget *tooltip_task_show, *tooltip_show_after, *tooltip_hide_after;
+extern GtkWidget *tooltip_task_show, *tooltip_show_after, *tooltip_hide_after, *tooltip_task_thumbnail, *tooltip_task_thumbnail_size;
 extern GtkWidget *clock_format_tooltip, *clock_tmz_tooltip;
 extern GtkWidget *tooltip_background;

@@ -203,6 +203,8 @@ enum {
    bgColBorderSidesBottom,
    bgColBorderSidesLeft,
    bgColBorderSidesRight,
+    bgColFillWeight,
+    bgColBorderWeight,
    bgNumCols
 };

@@ -211,7 +213,7 @@ extern GtkWidget *current_background, *background_fill_color, *background_border
    *background_fill_color_over, *background_border_color_over, *background_gradient_over, *background_fill_color_press,
    *background_border_color_press, *background_gradient_press, *background_border_width, *background_border_sides_top,
    *background_border_sides_bottom, *background_border_sides_left, *background_border_sides_right,
-    *background_corner_radius;
+    *background_corner_radius, *background_border_content_tint_weight, *background_fill_content_tint_weight;

 // gradients
 enum { grColPixbuf = 0, grColId, grColText, grNumCols };
--- a/src/tint2conf/properties_rw.c
+++ b/src/tint2conf/properties_rw.c
@@ -161,6 +161,8 @@ void config_write_backgrounds(FILE *fp)

        int r;
        int b;
+        double fill_weight;
+        double border_weight;
        gboolean sideTop;
        gboolean sideBottom;
        gboolean sideLeft;
@@ -228,6 +230,10 @@ void config_write_backgrounds(FILE *fp)
                           &sideLeft,
                           bgColBorderSidesRight,
                           &sideRight,
+                           bgColFillWeight,
+                           &fill_weight,
+                           bgColBorderWeight,
+                           &border_weight,
                           -1);
        fprintf(fp, "# Background %d: %s\n", index, text ? text : "");
        fprintf(fp, "rounded = %d\n", r);
@@ -245,6 +251,9 @@ void config_write_backgrounds(FILE *fp)
            strcat(sides, "R");
        fprintf(fp, "border_sides = %s\n", sides);

+        fprintf(fp, "border_content_tint_weight = %d\n", (int)(border_weight));
+        fprintf(fp, "background_content_tint_weight = %d\n", (int)(fill_weight));
+
        config_write_color(fp, "background_color", *fillColor, fillOpacity);
        config_write_color(fp, "border_color", *borderColor, borderOpacity);
        if (gradient_id >= 0)
@@ -517,6 +526,11 @@ void config_write_task(FILE *fp)
    if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(task_font_set)))
        fprintf(fp, "task_font = %s\n", gtk_font_button_get_font_name(GTK_FONT_BUTTON(task_font)));
    fprintf(fp, "task_tooltip = %d\n", gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tooltip_task_show)) ? 1 : 0);
+    fprintf(fp, "task_thumbnail = %d\n", gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tooltip_task_thumbnail)) ? 1 : 0);
+    fprintf(fp,
+            "task_thumbnail_size = %d\n",
+            (int)gtk_spin_button_get_value(GTK_SPIN_BUTTON(tooltip_task_thumbnail_size)));
+

    // same for: "" _normal _active _urgent _iconified
    if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(task_default_color_set))) {
@@ -1225,6 +1239,12 @@ void add_entry(char *key, char *value)
        int id = gradient_index_safe(atoi(value));
        gtk_combo_box_set_active(GTK_COMBO_BOX(background_gradient_press), id);
        background_force_update();
+    } else if (strcmp(key, "border_content_tint_weight") == 0) {
+        gtk_spin_button_set_value(GTK_SPIN_BUTTON(background_border_content_tint_weight), atoi(value));
+        background_force_update();
+    } else if (strcmp(key, "background_content_tint_weight") == 0) {
+        gtk_spin_button_set_value(GTK_SPIN_BUTTON(background_fill_content_tint_weight), atoi(value));
+        background_force_update();
    }

    /* Panel */
@@ -1732,6 +1752,10 @@ void add_entry(char *key, char *value)
    else if (strcmp(key, "task_tooltip") == 0 || strcmp(key, "tooltip") == 0) {
        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tooltip_task_show), atoi(value));
    }
+    else if (strcmp(key, "task_thumbnail") == 0)
+        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tooltip_task_thumbnail), atoi(value));
+    else if (strcmp(key, "task_thumbnail_size") == 0)
+        gtk_spin_button_set_value(GTK_SPIN_BUTTON(tooltip_task_thumbnail_size), MAX(8, atoi(value)));

    /* Systray */
    else if (strcmp(key, "systray") == 0) {
--- a/src/tooltip/tooltip.c
+++ b/src/tooltip/tooltip.c
@@ -54,8 +54,9 @@ void default_tooltip()
 void cleanup_tooltip()
 {
    stop_tooltip_timeout();
+    stop_timeout(g_tooltip.update_timeout);
    tooltip_hide(NULL);
-    tooltip_copy_text(NULL);
+    tooltip_update_contents_for(NULL);
    if (g_tooltip.window)
        XDestroyWindow(server.display, g_tooltip.window);
    g_tooltip.window = 0;
@@ -118,7 +119,7 @@ void tooltip_trigger_show(Area *area, Panel *p, XEvent *e)
    just_shown = TRUE;
    g_tooltip.panel = p;
    if (g_tooltip.mapped && g_tooltip.area != area) {
-        tooltip_copy_text(area);
+        tooltip_update_contents_for(area);
        tooltip_update();
        stop_tooltip_timeout();
    } else if (!g_tooltip.mapped) {
@@ -133,7 +134,7 @@ void tooltip_show(void *arg)
    XTranslateCoordinates(server.display, server.root_win, g_tooltip.panel->main_win, x, y, &mx, &my, &w);
    Area *area = find_area_under_mouse(g_tooltip.panel, mx, my);
    if (!g_tooltip.mapped && area->_get_tooltip_text) {
-        tooltip_copy_text(area);
+        tooltip_update_contents_for(area);
        g_tooltip.mapped = True;
        XMapWindow(server.display, g_tooltip.window);
        tooltip_update();
@@ -144,7 +145,7 @@ void tooltip_show(void *arg)
 void tooltip_update_geometry()
 {
    Panel *panel = g_tooltip.panel;
-    int screen_width = server.monitors[panel->monitor].x + server.monitors[panel->monitor].width;
+    int screen_width = server.monitors[panel->monitor].width;

    cairo_surface_t *cs = cairo_xlib_surface_create(server.display, g_tooltip.window, server.visual, width, height);
    cairo_t *c = cairo_create(cs);
@@ -152,16 +153,25 @@ void tooltip_update_geometry()

    pango_layout_set_font_description(layout, g_tooltip.font_desc);
    PangoRectangle r1, r2;
-    pango_layout_set_text(layout, "1234567890", -1);
+    pango_layout_set_text(layout, "1234567890abcdef", -1);
    pango_layout_get_pixel_extents(layout, &r1, &r2);
-    int max_width = MIN(r2.width * 7, screen_width * 2 / 3);
+    int max_width = MIN(r2.width * 5, screen_width * 2 / 3);
+    if (g_tooltip.image && cairo_image_surface_get_width(g_tooltip.image) > 0) {
+        max_width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx +
+                                cairo_image_surface_get_width(g_tooltip.image);
+    }
    pango_layout_set_width(layout, max_width * PANGO_SCALE);

-    pango_layout_set_text(layout, g_tooltip.tooltip_text, -1);
+    pango_layout_set_text(layout, g_tooltip.tooltip_text ? g_tooltip.tooltip_text : "1234567890abcdef", -1);
    pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
    pango_layout_get_pixel_extents(layout, &r1, &r2);
    width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx + r2.width;
    height = top_bottom_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingy + r2.height;
+    if (g_tooltip.image && cairo_image_surface_get_width(g_tooltip.image) > 0) {
+        width = left_right_bg_border_width(g_tooltip.bg) + 2 * g_tooltip.paddingx +
+                                        cairo_image_surface_get_width(g_tooltip.image);
+        height += g_tooltip.paddingy + cairo_image_surface_get_height(g_tooltip.image);
+    }

    if (panel_horizontal && panel_position & BOTTOM)
        y = panel->posy - height;
@@ -278,8 +288,16 @@ void tooltip_update()
                  -r1.x / 2 + left_bg_border_width(g_tooltip.bg) + g_tooltip.paddingx,
                  -r1.y / 2 + 1 + top_bg_border_width(g_tooltip.bg) + g_tooltip.paddingy);
    pango_cairo_show_layout(c, layout);
-
    g_object_unref(layout);
+
+    if (g_tooltip.image) {
+        cairo_translate(c,
+                        left_bg_border_width(g_tooltip.bg) + g_tooltip.paddingx,
+                        height - bottom_bg_border_width(g_tooltip.bg) - g_tooltip.paddingy - cairo_image_surface_get_height(g_tooltip.image));
+        cairo_set_source_surface(c, g_tooltip.image, 0, 0);
+        cairo_paint(c);
+    }
+
    cairo_destroy(c);
    cairo_surface_destroy(cs);
 }
@@ -287,7 +305,7 @@ void tooltip_update()
 void tooltip_trigger_hide()
 {
    if (g_tooltip.mapped) {
-        tooltip_copy_text(0);
+        tooltip_update_contents_for(NULL);
        start_hide_timeout();
    } else {
        // tooltip not visible yet, but maybe a timeout is still pending
@@ -302,6 +320,7 @@ void tooltip_hide(void *arg)
        XUnmapWindow(server.display, g_tooltip.window);
        XFlush(server.display);
    }
+    g_tooltip.area = NULL;
 }

 void start_show_timeout()
@@ -319,12 +338,25 @@ void stop_tooltip_timeout()
    stop_timeout(g_tooltip.timeout);
 }

-void tooltip_copy_text(Area *area)
+void tooltip_update_contents_timeout(void *arg)
 {
-    free(g_tooltip.tooltip_text);
+    tooltip_update_contents_for(g_tooltip.area);
+}
+
+void tooltip_update_contents_for(Area *area)
+{
+    free_and_null(g_tooltip.tooltip_text);
+    if (g_tooltip.image)
+        cairo_surface_destroy(g_tooltip.image);
+    g_tooltip.image = NULL;
    if (area && area->_get_tooltip_text)
        g_tooltip.tooltip_text = area->_get_tooltip_text(area);
-    else
-        g_tooltip.tooltip_text = NULL;
+    if (area && area->_get_tooltip_image) {
+        g_tooltip.image = area->_get_tooltip_image(area);
+        if (g_tooltip.image)
+            cairo_surface_reference(g_tooltip.image);
+        else
+            change_timeout(&g_tooltip.update_timeout, 300, 0, tooltip_update_contents_timeout, NULL);
+    }
    g_tooltip.area = area;
 }
--- a/src/tooltip/tooltip.h
+++ b/src/tooltip/tooltip.h
@@ -37,6 +37,8 @@ typedef struct {
    Color font_color;
    Background *bg;
    timeout *timeout;
+    timeout *update_timeout;
+    cairo_surface_t *image;
 } Tooltip;

 extern Tooltip g_tooltip;
@@ -53,7 +55,7 @@ void tooltip_show(void * /*arg*/);
 void tooltip_update();
 void tooltip_trigger_hide();
 void tooltip_hide(void * /*arg*/);
-void tooltip_copy_text(Area *area);
+void tooltip_update_contents_for(Area *area);
 void tooltip_default_font_changed();

 #endif // TOOLTIP_H
--- a/src/util/area.c
+++ b/src/util/area.c
@@ -490,28 +490,59 @@ void draw(Area *a)
    cairo_surface_destroy(cs);
 }

+double tint_color_channel(double a, double b, double tint_weight)
+{
+    double gamma = 2.2;
+    if (tint_weight == 0.0)
+        return a;
+    double result = sqrt((1.-tint_weight)*pow(a, gamma) + tint_weight * pow(b, gamma));
+    return result;
+}
+
+void set_cairo_source_tinted(cairo_t *c, Color *color1, Color *color2, double tint_weight)
+{
+    cairo_set_source_rgba(c,
+                          tint_color_channel(color1->rgb[0], color2->rgb[0], tint_weight),
+                          tint_color_channel(color1->rgb[1], color2->rgb[1], tint_weight),
+                          tint_color_channel(color1->rgb[2], color2->rgb[2], tint_weight),
+                          color1->alpha);
+}
+
+void set_cairo_source_bg_color(Area *a, cairo_t *c)
+{
+    Color content_color;
+    if (a->_get_content_color)
+        a->_get_content_color(a, &content_color);
+    else
+        bzero(&content_color, sizeof(content_color));
+    if (a->mouse_state == MOUSE_OVER)
+        set_cairo_source_tinted(c, &a->bg->fill_color_hover, &content_color, a->bg->fill_content_tint_weight);
+    else if (a->mouse_state == MOUSE_DOWN)
+        set_cairo_source_tinted(c, &a->bg->fill_color_pressed, &content_color, a->bg->fill_content_tint_weight);
+    else
+        set_cairo_source_tinted(c, &a->bg->fill_color, &content_color, a->bg->fill_content_tint_weight);
+}
+
+void set_cairo_source_border_color(Area *a, cairo_t *c)
+{
+    Color content_color;
+    if (a->_get_content_color)
+        a->_get_content_color(a, &content_color);
+    else
+        bzero(&content_color, sizeof(content_color));
+    if (a->mouse_state == MOUSE_OVER)
+        set_cairo_source_tinted(c, &a->bg->border_color_hover, &content_color, a->bg->border_content_tint_weight);
+    else if (a->mouse_state == MOUSE_DOWN)
+        set_cairo_source_tinted(c, &a->bg->border_color_pressed, &content_color, a->bg->border_content_tint_weight);
+    else
+        set_cairo_source_tinted(c, &a->bg->border.color, &content_color, a->bg->border_content_tint_weight);
+}
+
 void draw_background(Area *a, cairo_t *c)
 {
    if ((a->bg->fill_color.alpha > 0.0) ||
        (panel_config.mouse_effects && (a->has_mouse_over_effect || a->has_mouse_press_effect))) {
-        if (a->mouse_state == MOUSE_OVER)
-            cairo_set_source_rgba(c,
-                                  a->bg->fill_color_hover.rgb[0],
-                                  a->bg->fill_color_hover.rgb[1],
-                                  a->bg->fill_color_hover.rgb[2],
-                                  a->bg->fill_color_hover.alpha);
-        else if (a->mouse_state == MOUSE_DOWN)
-            cairo_set_source_rgba(c,
-                                  a->bg->fill_color_pressed.rgb[0],
-                                  a->bg->fill_color_pressed.rgb[1],
-                                  a->bg->fill_color_pressed.rgb[2],
-                                  a->bg->fill_color_pressed.alpha);
-        else
-            cairo_set_source_rgba(c,
-                                  a->bg->fill_color.rgb[0],
-                                  a->bg->fill_color.rgb[1],
-                                  a->bg->fill_color.rgb[2],
-                                  a->bg->fill_color.alpha);
+
        // Not sure about this
        draw_rect(c,
                  left_border_width(a),
@@ -519,7 +550,7 @@ void draw_background(Area *a, cairo_t *c)
                  a->width - left_right_border_width(a),
                  a->height - top_bottom_border_width(a),
                  a->bg->border.radius - a->bg->border.width / 1.571);
-
+        set_cairo_source_bg_color(a, c);
        cairo_fill(c);
    }
    for (GList *l = a->gradient_instances_by_state[a->mouse_state]; l; l = l->next) {
@@ -540,24 +571,7 @@ void draw_background(Area *a, cairo_t *c)
        cairo_set_line_width(c, a->bg->border.width);

        // draw border inside (x, y, width, height)
-        if (a->mouse_state == MOUSE_OVER)
-            cairo_set_source_rgba(c,
-                                  a->bg->border_color_hover.rgb[0],
-                                  a->bg->border_color_hover.rgb[1],
-                                  a->bg->border_color_hover.rgb[2],
-                                  a->bg->border_color_hover.alpha);
-        else if (a->mouse_state == MOUSE_DOWN)
-            cairo_set_source_rgba(c,
-                                  a->bg->border_color_pressed.rgb[0],
-                                  a->bg->border_color_pressed.rgb[1],
-                                  a->bg->border_color_pressed.rgb[2],
-                                  a->bg->border_color_pressed.alpha);
-        else
-            cairo_set_source_rgba(c,
-                                  a->bg->border.color.rgb[0],
-                                  a->bg->border.color.rgb[1],
-                                  a->bg->border.color.rgb[2],
-                                  a->bg->border.color.alpha);
+        set_cairo_source_border_color(a, c);
        draw_rect_on_sides(c,
                           left_border_width(a) / 2.,
                           top_border_width(a) / 2.,
--- a/src/util/area.h
+++ b/src/util/area.h
@@ -154,6 +154,8 @@ typedef struct Background {
    Color border_color_pressed;
    // Pointer to a GradientClass or NULL, no ownership
    GradientClass *gradients[MOUSE_STATE_COUNT];
+    double fill_content_tint_weight;
+    double border_content_tint_weight;
 } Background;

 typedef enum Layout {
@@ -233,6 +235,7 @@ typedef struct Area {
    // Returns a copy of the tooltip to be displayed for this widget.
    // The caller takes ownership of the pointer.
    char *(*_get_tooltip_text)(void *obj);
+    cairo_surface_t *(*_get_tooltip_image)(void *obj);

    // Returns true if the Area handles a mouse event at the given x, y coordinates relative to the window.
    // Leave this to NULL to use a default implementation.
@@ -240,6 +243,8 @@ typedef struct Area {

    // Prints the geometry of the object on stderr, with left indentation of indent spaces.
    void (*_dump_geometry)(void *obj, int indent);
+
+    void (*_get_content_color)(void *obj, Color *color);
 } Area;

 // Initializes the Background member to default values.
--- a/src/util/bool.h
+++ b/src/util/bool.h
@@ -0,0 +1,17 @@
+#ifndef BOOL_H
+#define BOOL_H
+
+#ifndef bool
+#define bool int
+#define false 0
+#define true 1
+#endif
+
+#define SUCCESS true
+#define FAILURE false
+
+#ifndef Status
+typedef int Status;
+#endif
+
+#endif
--- a/src/util/colors.h
+++ b/src/util/colors.h
@@ -0,0 +1,10 @@
+#ifndef COLORS_H
+#define COLORS_H
+
+#define GREEN "\033[1;32m"
+#define YELLOW "\033[1;33m"
+#define RED "\033[1;31m"
+#define BLUE "\033[1;34m"
+#define RESET "\033[0m"
+
+#endif
--- a/src/util/common.c
+++ b/src/util/common.c
@@ -31,7 +31,7 @@
 #include <glib.h>
 #include <glib/gstdio.h>
 #include "common.h"
-#include "../server.h"
+#include "server.h"
 #include <sys/wait.h>
 #include <sys/types.h>
 #include <pwd.h>
@@ -406,12 +406,14 @@ pid_t tint_exec(const char *command,
            wordexp_t words;
            words.we_offs = 2;
            if (wordexp(command, &words, WRDE_DOOFFS | WRDE_SHOWERR) == 0) {
-                words.we_wordv[0] = (char*)"x-terminal-emulator";
-                words.we_wordv[1] = (char*)"-e";
+                words.we_wordv[0] = (char *)"x-terminal-emulator";
+                words.we_wordv[1] = (char *)"-e";
                execvp("x-terminal-emulator", words.we_wordv);
            }
 #endif
-            fprintf(stderr, "tint2: could not execute command in x-terminal-emulator: %s, executting in shell\n", command);
+            fprintf(stderr,
+                    "tint2: could not execute command in x-terminal-emulator: %s, executting in shell\n",
+                    command);
        }
        execlp("sh", "sh", "-c", command, NULL);
        fprintf(stderr, "tint2: Failed to execute %s\n", command);
@@ -808,7 +810,7 @@ Imlib_Image load_image(const char *path, int cached)
                    GdkPixbuf *pixbuf = rsvg_handle_get_pixbuf(svg);
                    gdk_pixbuf_save(pixbuf, tmp_filename, "png", NULL, NULL);
                }
-                exit(0);
+                _exit(0);
            } else {
                // Parent
                close(fd);
@@ -935,10 +937,9 @@ void get_text_size2(const PangoFontDescription *font,

    available_width = MAX(0, available_width);
    available_height = MAX(0, available_height);
-    Pixmap pmap = XCreatePixmap(server.display, server.root_win, available_height, available_width, server.depth);

    cairo_surface_t *cs =
-        cairo_xlib_surface_create(server.display, pmap, server.visual, available_height, available_width);
+        cairo_image_surface_create(CAIRO_FORMAT_ARGB32, available_height, available_width);
    cairo_t *c = cairo_create(cs);

    PangoLayout *layout = pango_cairo_create_layout(c);
@@ -962,7 +963,6 @@ void get_text_size2(const PangoFontDescription *font,
    g_object_unref(layout);
    cairo_destroy(c);
    cairo_surface_destroy(cs);
-    XFreePixmap(server.display, pmap);
 }

 #if !GLIB_CHECK_VERSION(2, 34, 0)
@@ -1057,3 +1057,57 @@ GString *tint2_g_string_replace(GString *s, const char *from, const char *to)
    g_string_free(result, TRUE);
    return s;
 }
+
+void get_image_mean_color(const Imlib_Image image, Color *mean_color)
+{
+    bzero(mean_color, sizeof(*mean_color));
+
+    if (!image)
+        return;
+    imlib_context_set_image(image);
+    imlib_image_set_has_alpha(1);
+    size_t size = (size_t)imlib_image_get_width() * (size_t)imlib_image_get_height();
+    DATA32 *data = imlib_image_get_data_for_reading_only();
+    DATA32 sum_r, sum_g, sum_b, count;
+    sum_r = sum_g = sum_b = count = 0;
+    for (size_t i = 0; i < size; i++) {
+        DATA32 argb, a, r, g, b;
+        argb = data[i];
+        a = (argb >> 24) & 0xff;
+        r = (argb >> 16) & 0xff;
+        g = (argb >> 8) & 0xff;
+        b = (argb) & 0xff;
+        if (a) {
+            sum_r += r;
+            sum_g += g;
+            sum_b += b;
+            count++;
+        }
+    }
+
+    if (!count)
+        count = 1;
+    mean_color->alpha = 1.0;
+    mean_color->rgb[0] = sum_r / 255.0 / count;
+    mean_color->rgb[1] = sum_g / 255.0 / count;
+    mean_color->rgb[2] = sum_b / 255.0 / count;
+}
+
+void adjust_color(Color *color, int alpha, int saturation, int brightness)
+{
+    if (alpha == 100 && saturation == 0 && brightness == 0)
+        return;
+    DATA32 argb = (((DATA32)(color->alpha * 255) & 0xff) << 24) |
+            (((DATA32)(color->rgb[0] * 255) & 0xff) << 16) |
+            (((DATA32)(color->rgb[1] * 255) & 0xff) << 8) |
+            (((DATA32)(color->rgb[2] * 255) & 0xff) << 0);
+    adjust_asb(&argb, 1, 1, alpha / 100.0, saturation / 100.0, brightness / 100.0);
+    DATA32 a = (argb >> 24) & 0xff;
+    DATA32 r = (argb >> 16) & 0xff;
+    DATA32 g = (argb >> 8) & 0xff;
+    DATA32 b = (argb) & 0xff;
+    color->alpha = a / 255.;
+    color->rgb[0] = r / 255.;
+    color->rgb[1] = g / 255.;
+    color->rgb[2] = b / 255.;
+}
--- a/src/util/common.h
+++ b/src/util/common.h
@@ -12,12 +12,7 @@
 #include <Imlib2.h>
 #include <pango/pangocairo.h>
 #include "area.h"
-
-#define GREEN "\033[1;32m"
-#define YELLOW "\033[1;33m"
-#define RED "\033[1;31m"
-#define BLUE "\033[1;34m"
-#define RESET "\033[0m"
+#include "colors.h"

 #define MAX3(a, b, c) MAX(MAX(a, b), c)
 #define MIN3(a, b, c) MIN(MIN(a, b), c)
@@ -109,6 +104,7 @@ Imlib_Image load_image(const char *path, int cached);
 //   *  1 = white
 void adjust_asb(DATA32 *data, int w, int h, float alpha_adjust, float satur_adjust, float bright_adjust);
 Imlib_Image adjust_icon(Imlib_Image original, int alpha, int saturation, int brightness);
+void adjust_color(Color *color, int alpha, int saturation, int brightness);

 void create_heuristic_mask(DATA32 *data, int w, int h);

@@ -150,6 +146,8 @@ gint cmp_ptr(gconstpointer a, gconstpointer b);

 GString *tint2_g_string_replace(GString *s, const char *from, const char *to);

+void get_image_mean_color(const Imlib_Image image, Color *mean_color);
+
 #define free_and_null(p) \
    {                    \
        free(p);         \
--- a/src/util/print.c
+++ b/src/util/print.c
@@ -0,0 +1,83 @@
+#include <stdio.h>
+
+#include "print.h"
+
+int print_uchar(unsigned char v)
+{
+    return printf("%u", v);
+}
+
+int print_char(char v)
+{
+    return printf("%c", v);
+}
+
+int print_short(short v)
+{
+    return printf("%d", v);
+}
+
+int print_ushort(unsigned short v)
+{
+    return printf("%u", v);
+}
+
+int print_int(int v)
+{
+    return printf("%d", v);
+}
+
+int print_uint(unsigned v)
+{
+    return printf("%u", v);
+}
+
+int print_long(long v)
+{
+    return printf("%ld", v);
+}
+
+int print_ulong(unsigned long v)
+{
+    return printf("%lu", v);
+}
+
+int print_long_long(long long v)
+{
+    return printf("%lld", v);
+}
+
+int print_ulong_long(unsigned long long v)
+{
+    return printf("%llu", v);
+}
+
+int print_float(float v)
+{
+    return printf("%f", (double)v);
+}
+
+int print_double(double v)
+{
+    return printf("%f", v);
+}
+
+int print_long_double(long double v)
+{
+    return printf("%Lf", v);
+}
+
+int print_string(char *s)
+{
+    return printf("%s", s);
+}
+
+int print_pointer(void *v)
+{
+    return printf("%p", v);
+}
+
+int print_unknown()
+{
+    return printf("(variable of unknown type)");
+}
--- a/src/util/print.h
+++ b/src/util/print.h
@@ -0,0 +1,61 @@
+#ifndef PRINT_H
+#define PRINT_H
+
+#ifdef HAS_GENERIC
+
+int print_uchar(unsigned char v);
+
+int print_char(char v);
+
+int print_short(short v);
+
+int print_ushort(unsigned short v);
+
+int print_int(int v);
+
+int print_uint(unsigned v);
+
+int print_long(long v);
+
+int print_ulong(unsigned long v);
+
+int print_long_long(long long v);
+
+int print_ulong_long(unsigned long long v);
+
+int print_float(float v);
+
+int print_double(double v);
+
+int print_long_double(long double v);
+
+int print_string(char *s);
+
+int print_pointer(void *v);
+
+int print_unknown();
+
+#define print(x) \
+    _Generic((x), \
+    unsigned char: print_uchar, \
+    char: print_char, \
+    short int: print_short, \
+    unsigned short int: print_ushort, \
+    int: print_int, \
+    unsigned int: print_uint, \
+    long int: print_long, \
+    unsigned long int: print_ulong, \
+    long long int: print_long_long, \
+    unsigned long long int: print_ulong_long, \
+    float: print_float,          \
+    double: print_double,                 \
+    long double: print_long_double,     \
+    char *: print_string, \
+    void *: print_pointer, \
+    default : print_unknown)(x)
+
+#else
+#define print(...) printf("Omitted, the compiler does not support C11 generics.\n")
+#endif
+
+#endif
--- a/src/util/server.c
+++ b/src/util/server.c
--- a/src/util/server.h
+++ b/src/util/server.h
@@ -147,6 +147,7 @@ typedef struct Server {
    Global_atom atom;
    int xdamage_event_type;
    int xdamage_event_error_type;
+    gboolean has_shm;
 #ifdef HAVE_SN
    SnDisplay *sn_display;
    GTree *pids;
--- a/src/util/signals.c
+++ b/src/util/signals.c
--- a/src/util/signals.h
+++ b/src/util/signals.h
--- a/src/util/test.c
+++ b/src/util/test.c
@@ -0,0 +1,159 @@
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <glib.h>
+
+#include "colors.h"
+#include "signals.h"
+#include "test.h"
+
+typedef struct TestListItem {
+    Test *test;
+    const char *name;
+} TestListItem;
+
+static GList *all_tests = NULL;
+
+void register_test_(Test *test, const char *name)
+{
+    TestListItem *item = (TestListItem *)calloc(sizeof(TestListItem), 1);
+    item->test = test;
+    item->name = name;
+    all_tests = g_list_append(all_tests, item);
+}
+
+static char *test_log_name_from_test_name(const char *test_name)
+{
+    char *output_name = g_strdup_printf("test_%s.log", test_name);
+    char *result = strdup(output_name);
+    g_free(output_name);
+    return result;
+}
+
+static void redirect_test_output(const char *test_name)
+{
+    char *output_name = test_log_name_from_test_name(test_name);
+    int fd = open(output_name, O_WRONLY | O_CREAT | O_TRUNC, 0600);
+    if (fd == -1)
+        goto err;
+    if (dup2(fd, STDOUT_FILENO) == -1)
+        goto err;
+    if (dup2(fd, STDERR_FILENO) == -1)
+        goto err;
+
+    close(fd);
+    free(output_name);
+    return;
+err:
+    fprintf(stderr, "tint2: Could not redirect test output to file name: %s\n", output_name);
+    if (fd != -1)
+        close(fd);
+    free(output_name);
+}
+
+__attribute__((noreturn))
+static void run_test_child(TestListItem *item)
+{
+    reset_signals();
+    redirect_test_output(item->name);
+    bool result = true;
+    item->test(&result);
+    exit(result ? EXIT_SUCCESS : EXIT_FAILURE);
+}
+
+static FILE *open_test_log(const char *test_name)
+{
+    char *output_name = test_log_name_from_test_name(test_name);
+    FILE *log = fopen(output_name, "a");
+    free(output_name);
+    return log;
+}
+
+static Status run_test_parent(TestListItem *item, pid_t child)
+{
+    FILE *log = open_test_log(item->name);
+    if (child == -1) {
+        fprintf(log, "\n" "Test failed, fork failed\n");
+        fclose(log);
+        return FAILURE;
+    }
+
+    int child_status;
+    pid_t ret_pid = waitpid(child, &child_status, 0);
+    if (ret_pid != child) {
+        fprintf(log, "\n" "Test failed, waitpid failed\n");
+        fclose(log);
+        return FAILURE;
+    }
+    if (WIFEXITED(child_status)) {
+        int exit_status = WEXITSTATUS(child_status);
+        if (exit_status == EXIT_SUCCESS) {
+            fprintf(log, "\n" "Test succeeded.\n");
+            fclose(log);
+            return SUCCESS;
+        } else {
+            fprintf(log, "\n" "Test failed, exit status: %d.\n", exit_status);
+            fclose(log);
+            return FAILURE;
+        }
+    } else if (WIFSIGNALED(child_status)) {
+        int signal = WTERMSIG(child_status);
+        fprintf(log, "\n" "Test failed, child killed by signal: %d.\n", signal);
+        fclose(log);
+        return FAILURE;
+    } else {
+        fprintf(log, "\n" "Test failed, waitpid failed.\n");
+        fclose(log);
+        return FAILURE;
+    }
+}
+
+static Status run_test(TestListItem *item)
+{
+    pid_t pid = fork();
+    if (pid == 0)
+        run_test_child(item);
+    return run_test_parent(item, pid);
+}
+
+void run_all_tests()
+{
+    fprintf(stdout, BLUE "tint2: Running %d tests..." RESET "\n", g_list_length(all_tests));
+    size_t count = 0, succeeded = 0, failed = 0;
+    for (GList *l = all_tests; l; l = l->next) {
+        TestListItem *item = (TestListItem *)l->data;
+        Status status = run_test(item);
+        count++;
+        fprintf(stdout, BLUE "tint2: Test " YELLOW "%s" BLUE ": ", item->name);
+        if (status == SUCCESS) {
+            fprintf(stdout, GREEN "succeeded" RESET "\n");
+            succeeded++;
+        } else {
+            fprintf(stdout, RED "failed" RESET "\n");
+            failed++;
+        }
+    }
+    if (failed == 0)
+        fprintf(stdout, BLUE "tint2: " GREEN "all %lu tests succeeded." RESET "\n", count);
+    else
+        fprintf(stdout, BLUE "tint2: " RED "%lu" BLUE " out of %lu tests " RED "failed." RESET "\n", failed, count);
+}
+
+TEST(dummy) {
+    int x = 2;
+    int y = 2;
+    ASSERT_EQUAL(x, y);
+}
+
+TEST(dummyBad) {
+    int x = 2;
+    int y = 3;
+    ASSERT_EQUAL(x, y);
+}
--- a/src/util/test.h
+++ b/src/util/test.h
@@ -0,0 +1,72 @@
+#ifndef TEST_H
+#define TEST_H
+
+#include "bool.h"
+#include "print.h"
+
+typedef void Test(Status *test_result_);
+
+void register_test_(Test *test, const char *name);
+
+#define TEST(name)                                           \
+    void test_##name(Status *test_result_);                  \
+    __attribute__((constructor)) void test_register_##name() \
+    {                                                        \
+        register_test_(test_##name, #name);                  \
+    }                                                        \
+    void test_##name(Status *test_result_)
+
+void run_all_tests();
+
+#define FAIL_TEST_           \
+    *test_result_ = FAILURE; \
+    return;
+
+#define ASSERT(value) \
+    if (!(value)) {   \
+        FAIL_TEST_    \
+    }
+
+#define ASSERT_EQUAL(a, b)                              \
+    if (!(a == b)) {                                    \
+        printf("Assertion failed: %s == %s: ", #a, #b); \
+        print(a);                                       \
+        printf(" != ");                                 \
+        print(b);                                       \
+        FAIL_TEST_                                      \
+    }
+
+#define ASSERT_DIFFERENT(a, b) \
+    if (a == b) {                                    \
+        printf("Assertion failed: %s != %s: ", #a, #b); \
+        print(a);                                       \
+        printf(" == ");                                 \
+        print(b);                                       \
+        FAIL_TEST_                                      \
+    }
+
+
+#define ASSERT_STR_EQUAL(a, b) \
+    if (strcmp(a, b) != 0) {                                    \
+        printf("Assertion failed: %s == %s: ", #a, #b); \
+        print(a);                                       \
+        printf(" != ");                                 \
+        print(b);                                       \
+        FAIL_TEST_                                      \
+    }
+
+#define ASSERT_STR_DIFFERENT(a, b) \
+    if (strcmp(a, b) == 0) {                                    \
+        printf("Assertion failed: %s != %s: ", #a, #b); \
+        print(a);                                       \
+        printf(" == ");                                 \
+        print(b);                                       \
+        FAIL_TEST_                                      \
+    }
+
+#define ASSERT_TRUE(value) ASSERT_EQUAL(value, 1)
+#define ASSERT_FALSE(value) ASSERT_EQUAL(value, 0)
+#define ASSERT_NULL(value) ASSERT_EQUAL(value, NULL)
+#define ASSERT_NON_NULL(value) ASSERT_DIFFERENT(value, NULL)
+
+#endif
--- a/src/util/timer.c
+++ b/src/util/timer.c
@@ -45,6 +45,8 @@ struct _timeout {
    multi_timeout *multi_timeout;
    timeout **self;
    gboolean expired;
+    // timer has been restarted from its own callback function
+    gboolean reactivated;
 };

 void add_timeout_intern(int value_msec, int interval_msec, void (*_callback)(void *), void *arg, timeout *t);
@@ -158,18 +160,21 @@ void handle_expired_timers()
        if (compare_timespecs(&t->timeout_expires, &cur_time) <= 0) {
            // it's time for the callback function
            t->expired = t->interval_msec == 0;
+            t->reactivated = FALSE;
            t->_callback(t->arg);
            // If _callback() calls stop_timeout(t) the timer 't' was freed and is not in the timeout_list
            if (g_slist_find(timeout_list, t)) {
                // Timer still exists
-                timeout_list = g_slist_remove(timeout_list, t);
-                if (t->interval_msec > 0) {
-                    add_timeout_intern(t->interval_msec, t->interval_msec, t->_callback, t->arg, t);
-                } else {
-                    // Destroy single-shot timer
-                    if (t->self)
-                        *t->self = NULL;
-                    free(t);
+                if (!t->reactivated) {
+                    timeout_list = g_slist_remove(timeout_list, t);
+                    if (t->interval_msec > 0) {
+                        add_timeout_intern(t->interval_msec, t->interval_msec, t->_callback, t->arg, t);
+                    } else {
+                        // Destroy single-shot timer
+                        if (t->self)
+                            *t->self = NULL;
+                        free(t);
+                    }
                }
            }
        } else {
@@ -208,6 +213,7 @@ void add_timeout_intern(int value_msec, int interval_msec, void (*_callback)(),
        can_align = align_with_existing_timeouts(t);
    if (!can_align)
        timeout_list = g_slist_insert_sorted(timeout_list, t, compare_timeouts);
+    t->reactivated = TRUE;
 }

 gint compare_timeouts(gconstpointer t1, gconstpointer t2)
@@ -384,6 +390,7 @@ void callback_multi_timeout(void *arg)
    gettime(&cur_time);
    GSList *it = mth->timeout_list;
    while (it) {
+        GSList *next = it->next;
        timeout *t = it->data;
        if (++t->multi_timeout->current_count >= t->multi_timeout->count_to_expiration) {
            t->_callback(t->arg);
@@ -395,7 +402,7 @@ void callback_multi_timeout(void *arg)
                return;
            }
        }
-        it = it->next;
+        it = next;
    }
 }

--- a/src/util/tracing.c
+++ b/src/util/tracing.c
--- a/src/util/tracing.h
+++ b/src/util/tracing.h
--- a/src/util/window.c
+++ b/src/util/window.c
@@ -24,11 +24,17 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdint.h>
+#include <sys/types.h>

 #include <Imlib2.h>
 #include <cairo.h>
 #include <cairo-xlib.h>

+#include <X11/extensions/XShm.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
 #include "common.h"
 #include "window.h"
 #include "server.h"
@@ -157,7 +163,8 @@ int get_window_desktop(Window win)

    if (best_match < 0)
        best_match = 0;
-    // fprintf(stderr, "tint2: window %lx %s : viewport %d, (%d, %d)\n", win, get_task(win) ? get_task(win)->title : "??",
+    // fprintf(stderr, "tint2: window %lx %s : viewport %d, (%d, %d)\n", win, get_task(win) ? get_task(win)->title :
+    // "??",
    // best_match+1, x, y);
    return best_match;
 }
@@ -190,15 +197,18 @@ int get_window_monitor(Window win)
    return best_match;
 }

-void get_window_coordinates(Window win, int *x, int *y, int *w, int *h)
+gboolean get_window_coordinates(Window win, int *x, int *y, int *w, int *h)
 {
    int dummy_int;
    unsigned ww, wh, bw, bh;
    Window src;
-    XTranslateCoordinates(server.display, win, server.root_win, 0, 0, x, y, &src);
-    XGetGeometry(server.display, win, &src, &dummy_int, &dummy_int, &ww, &wh, &bw, &bh);
+    if (!XTranslateCoordinates(server.display, win, server.root_win, 0, 0, x, y, &src))
+        return FALSE;
+    if (!XGetGeometry(server.display, win, &src, &dummy_int, &dummy_int, &ww, &wh, &bw, &bh))
+        return FALSE;
    *w = ww + bw;
-    *h = wh + bh;
+    *h = wh + bw;
+    return TRUE;
 }

 gboolean window_is_iconified(Window win)
@@ -352,3 +362,251 @@ char *get_window_name(Window win)
    XFree(text_property.value);
    return result;
 }
+
+void smooth_thumbnail(cairo_surface_t *image_surface)
+{
+    u_int32_t *data = (u_int32_t *)cairo_image_surface_get_data(image_surface);
+    const size_t tw = cairo_image_surface_get_width(image_surface);
+    const size_t th = cairo_image_surface_get_height(image_surface);
+    const size_t rmask = 0xff0000;
+    const size_t gmask = 0xff00;
+    const size_t bmask = 0xff;
+    for (size_t i = 0; i < tw * (th - 1) - 1; i++) {
+        u_int32_t c1 = data[i];
+        u_int32_t c2 = data[i + 1];
+        u_int32_t c3 = data[i + tw];
+        u_int32_t c4 = data[i + tw + 1];
+        u_int32_t b = (5 * (c1 & bmask) + 1 * (c2 & bmask) + 1 * (c3 & bmask) + 1 * (c4 & bmask)) / 8;
+        u_int32_t g = (5 * (c1 & gmask) + 1 * (c2 & gmask) + 1 * (c3 & gmask) + 1 * (c4 & gmask)) / 8;
+        u_int32_t r = (5 * (c1 & rmask) + 1 * (c2 & rmask) + 1 * (c3 & rmask) + 1 * (c4 & rmask)) / 8;
+        data[i] = (r & rmask) | (g & gmask) | (b & bmask);
+    }
+}
+
+// This is measured to be slightly faster.
+#define GetPixel(ximg, x, y) ((u_int32_t *)&(ximg->data[y * ximg->bytes_per_line]))[x]
+//#define GetPixel XGetPixel
+
+cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean use_shm)
+{
+    cairo_surface_t *result = NULL;
+    XWindowAttributes wa;
+    if (!XGetWindowAttributes(server.display, win, &wa) || wa.width <= 0 || wa.height <= 0 ||
+        wa.map_state != IsViewable)
+        goto err0;
+
+    if (window_is_iconified(win))
+        goto err0;
+
+    size_t w, h;
+    w = (size_t)wa.width;
+    h = (size_t)wa.height;
+    size_t tw, th, fw;
+    size_t ox, oy;
+    tw = size;
+    th = h * tw / w;
+    if (th > tw * 0.618) {
+        th = (size_t)(tw * 0.618);
+        fw = w * th / h;
+        ox = (tw - fw) / 2;
+        oy = 0;
+    } else {
+        fw = tw;
+        ox = oy = 0;
+    }
+
+    XShmSegmentInfo shminfo;
+    XImage *ximg;
+    if (use_shm)
+        ximg = XShmCreateImage(server.display,
+                               wa.visual,
+                               (unsigned)wa.depth,
+                               ZPixmap,
+                               NULL,
+                               &shminfo,
+                               (unsigned)w,
+                               (unsigned)h);
+    else
+        ximg = XGetImage(server.display, win, 0, 0, (unsigned)w, (unsigned)h, AllPlanes, ZPixmap);
+    if (!ximg) {
+        fprintf(stderr, RED "tint2: !ximg" RESET "\n");
+        goto err0;
+    }
+    if (ximg->bits_per_pixel != 24 && ximg->bits_per_pixel != 32) {
+        fprintf(stderr, RED "tint2: unusual bits_per_pixel" RESET "\n");
+        goto err1;
+    }
+    if (use_shm) {
+        shminfo.shmid = shmget(IPC_PRIVATE, (size_t)(ximg->bytes_per_line * ximg->height), IPC_CREAT | 0777);
+        if (shminfo.shmid < 0) {
+            fprintf(stderr, RED "tint2: !shmget" RESET "\n");
+            goto err1;
+        }
+        shminfo.shmaddr = ximg->data = (char *)shmat(shminfo.shmid, 0, 0);
+        if (!shminfo.shmaddr) {
+            fprintf(stderr, RED "tint2: !shmat" RESET "\n");
+            goto err2;
+        }
+        shminfo.readOnly = False;
+        if (!XShmAttach(server.display, &shminfo)) {
+            fprintf(stderr, RED "tint2: !xshmattach" RESET "\n");
+            goto err3;
+        }
+        if (!XShmGetImage(server.display, win, ximg, 0, 0, AllPlanes)) {
+            fprintf(stderr, RED "tint2: !xshmgetimage" RESET "\n");
+            goto err4;
+        }
+    }
+
+    XGetWindowAttributes(server.display, win, &wa);
+    if (wa.map_state != IsViewable)
+        goto err4;
+
+    result = cairo_image_surface_create(CAIRO_FORMAT_RGB24, (int)tw, (int)th);
+    u_int32_t *data = (u_int32_t *)cairo_image_surface_get_data(result);
+    memset(data, 0, tw * th);
+
+    // Fixed-point precision
+    const size_t prec = 1 << 16;
+    const size_t xstep = w * prec / fw;
+    const size_t ystep = h * prec / th;
+
+    const size_t offset_y1 = 0 * ystep / 8;
+    const size_t offset_x1 = 3 * xstep / 8;
+
+    const size_t offset_y2 = 1 * ystep / 8;
+    const size_t offset_x2 = 6 * xstep / 8;
+
+    const size_t offset_y3 = 4 * ystep / 8;
+    const size_t offset_x3 = 2 * xstep / 8;
+
+    const size_t offset_y4 = 4 * ystep / 8;
+    const size_t offset_x4 = 4 * xstep / 8;
+
+    const size_t offset_y5 = 4 * ystep / 8;
+    const size_t offset_x5 = 7 * xstep / 8;
+
+    const size_t offset_y6 = 6 * ystep / 8;
+    const size_t offset_x6 = 1 * xstep / 8;
+
+    const size_t offset_y7 = 7 * ystep / 8;
+    const size_t offset_x7 = 6 * xstep / 8;
+
+    const u_int32_t rmask = (u_int32_t)ximg->red_mask;
+    const u_int32_t gmask = (u_int32_t)ximg->green_mask;
+    const u_int32_t bmask = (u_int32_t)ximg->blue_mask;
+    for (size_t yt = 0, y = 0; yt < th; yt++, y += ystep) {
+        for (size_t xt = 0, x = 0; xt < fw; xt++, x += xstep) {
+            size_t j = yt * tw + ox + xt;
+            u_int32_t c1 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x1) / prec), (int)((y + offset_y1) / prec));
+            u_int32_t c2 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x2) / prec), (int)((y + offset_y2) / prec));
+            u_int32_t c3 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x3) / prec), (int)((y + offset_y3) / prec));
+            u_int32_t c4 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x4) / prec), (int)((y + offset_y4) / prec));
+            u_int32_t c5 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x5) / prec), (int)((y + offset_y5) / prec));
+            u_int32_t c6 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x6) / prec), (int)((y + offset_y6) / prec));
+            u_int32_t c7 = (u_int32_t)GetPixel(ximg, (int)((x + offset_x7) / prec), (int)((y + offset_y7) / prec));
+            u_int32_t b = ((c1 & bmask) + (c2 & bmask) + (c3 & bmask) + (c4 & bmask) + (c5 & bmask) * 2 + (c6 & bmask) +
+                           (c7 & bmask)) /
+                          8;
+            u_int32_t g = ((c1 & gmask) + (c2 & gmask) + (c3 & gmask) + (c4 & gmask) + (c5 & gmask) * 2 + (c6 & gmask) +
+                           (c7 & gmask)) /
+                          8;
+            u_int32_t r = ((c1 & rmask) + (c2 & rmask) + (c3 & rmask) + (c4 & rmask) + (c5 & rmask) * 2 + (c6 & rmask) +
+                           (c7 & rmask)) /
+                          8;
+            data[j] = (r & rmask) | (g & gmask) | (b & bmask);
+        }
+    }
+    // Convert to argb32
+    if (rmask & 0xff0000) {
+        // argb32 or rgb24 => Nothing to do
+    } else if (rmask & 0xff) {
+        // bgr24
+        for (size_t i = 0; i < tw * th; i++) {
+            u_int32_t r = (data[i] & rmask) << 16;
+            u_int32_t g = (data[i] & gmask);
+            u_int32_t b = (data[i] & bmask) >> 16;
+            data[i] = (r & 0xff0000) | (g & 0x00ff00) | (b & 0x0000ff);
+        }
+    } else if (rmask & 0xff00) {
+        // bgra32
+        for (size_t i = 0; i < tw * th; i++) {
+            u_int32_t r = (data[i] & rmask) << 8;
+            u_int32_t g = (data[i] & gmask) >> 8;
+            u_int32_t b = (data[i] & bmask) >> 24;
+            data[i] = (r & 0xff0000) | (g & 0x00ff00) | (b & 0x0000ff);
+        }
+    }
+
+    // 2nd pass
+    smooth_thumbnail(result);
+
+    if (ximg) {
+        XDestroyImage(ximg);
+        ximg = NULL;
+    }
+err4:
+    if (use_shm)
+        XShmDetach(server.display, &shminfo);
+err3:
+    if (use_shm)
+        shmdt(shminfo.shmaddr);
+err2:
+    if (use_shm)
+        shmctl(shminfo.shmid, IPC_RMID, NULL);
+err1:
+    if (ximg)
+        XDestroyImage(ximg);
+err0:
+    return result;
+}
+
+gboolean cairo_surface_is_blank(cairo_surface_t *image_surface)
+{
+    uint32_t *pixels = (uint32_t *)cairo_image_surface_get_data(image_surface);
+    gboolean empty = TRUE;
+    int size = cairo_image_surface_get_width(image_surface) * cairo_image_surface_get_height(image_surface);
+    for (int i = 0; empty && i < size; i++) {
+        if (pixels[i] & 0xffFFff)
+            empty = FALSE;
+    }
+    return empty;
+}
+
+cairo_surface_t *get_window_thumbnail(Window win, int size)
+{
+    cairo_surface_t *image_surface = NULL;
+    const gboolean shm_allowed = FALSE;
+    if (shm_allowed && server.has_shm && server.composite_manager) {
+        image_surface = get_window_thumbnail_ximage(win, (size_t)size, TRUE);
+        if (image_surface && cairo_surface_is_blank(image_surface)) {
+            cairo_surface_destroy(image_surface);
+            image_surface = NULL;
+        }
+        if (debug_thumbnails) {
+            if (!image_surface)
+                fprintf(stderr, YELLOW "tint2: XShmGetImage failed, trying slower method" RESET "\n");
+            else
+                fprintf(stderr, "tint2: captured window using XShmGetImage\n");
+        }
+    }
+
+    if (!image_surface) {
+        image_surface = get_window_thumbnail_ximage(win, (size_t)size, FALSE);
+        if (image_surface && cairo_surface_is_blank(image_surface)) {
+            cairo_surface_destroy(image_surface);
+            image_surface = NULL;
+        }
+        if (debug_thumbnails) {
+            if (!image_surface)
+                fprintf(stderr, YELLOW "tint2: XGetImage failed, trying slower method" RESET "\n");
+            else
+                fprintf(stderr, "tint2: captured window using XGetImage\n");
+        }
+    }
+
+    if (!image_surface)
+        return NULL;
+
+    return image_surface;
+}
--- a/src/util/window.h
+++ b/src/util/window.h
@@ -25,7 +25,7 @@ int get_window_monitor(Window win);

 void activate_window(Window win);
 void close_window(Window win);
-void get_window_coordinates(Window win, int *x, int *y, int *w, int *h);
+gboolean get_window_coordinates(Window win, int *x, int *y, int *w, int *h);
 void toggle_window_maximized(Window win);
 void toggle_window_shade(Window win);
 void change_window_desktop(Window win, int desktop);
@@ -34,5 +34,6 @@ int get_icon_count(gulong *data, int num);
 gulong *get_best_icon(gulong *data, int icon_count, int num, int *iw, int *ih, int best_icon_size);

 char *get_window_name(Window win);
+cairo_surface_t *get_window_thumbnail(Window win, int size);

 #endif
--- a/test/fabfile.py
+++ b/test/fabfile.py
@@ -0,0 +1,107 @@
+#!/usr/bin/env python2
+
+# Setup: add tint2-runner, tint2-freebsd and tint2-openbsd in /etc/hosts.
+# Run: pip install fabric; pip install fabtools.
+
+# TODO: setup bsd workers
+# TODO: prin ssh public key to be added on gitlab
+
+from fabric.api import *
+from fabric.contrib.files import *
+from fabtools import require
+import fabtools
+import os
+
+
+env.use_ssh_config = True
+env.user = 'root'
+env.sudo_prefix += '-H '
+env.roledefs = {
+    'runner': ['tint2-runner'],
+    'freebsd': ['tint2-freebsd'],
+    'openbsd': ['tint2-openbsd'],
+}
+
+
+def str2hex(s):
+  return ''.join('{:02x}'.format(ord(c)) for c in s)
+
+
+def generate_random_password():
+  return str2hex(os.urandom(32))
+
+
+def read_file(path):
+  with open(path) as f:
+    return f.read()
+
+
+@task
+@roles('runner', 'freebsd', 'openbsd')
+def create_users():
+  require.user('root', password=generate_random_password())
+  require.user('runner', password=generate_random_password())
+  sudo('cd; mkdir -p .ssh; chmod 700 .ssh', user='runner')
+  if not exists('/home/runner/.ssh/id_rsa'):
+    sudo('cd; ssh-keygen -f ~/.ssh/id_rsa -t rsa -N ""', user='runner')
+
+
+@task
+@roles('runner')
+def install_deps():
+  require.deb.packages([
+    # Repo deps
+    'git',
+    # Build deps
+    'build-essential',
+    'cmake',
+    'libglib2.0-dev',
+    'libcairo2-dev',
+    'libglib2.0-dev',
+    'libgtk2.0-dev',
+    'libimlib2-dev',
+    'libpango1.0-dev',
+    'librsvg2-dev',
+    'libstartup-notification0-dev',
+    'libx11-dev',
+    'libxcomposite-dev',
+    'libxdamage-dev',
+    'libxinerama-dev',
+    'libxrandr-dev',
+    'libxrender-dev',
+    # Tester deps
+    'python-minimal',
+    'xvfb',
+    'xsettingsd',
+    'openbox',
+    'compton',
+    'x11-utils',
+    'gnome-calculator'
+  ])
+
+
+@task
+@roles('runner')
+def pull_code():
+  if not exists('/home/runner/tint2'):
+    sudo('cd; git clone https://gitlab.com/o9000/tint2.git', user='runner')
+  if not exists('/home/runner/tint2.wiki'):
+    sudo('cd; git clone git@gitlab.com:o9000/tint2.wiki.git', user='runner')
+  sudo('cd; git config --global user.name "tint2.runner"', user='runner')
+  sudo('cd; git config --global user.email "tint2.runner@netperf.tools"', user='runner')
+
+
+@task
+@roles('runner')
+def add_cron_jobs():
+  fabtools.cron.add_task('tests', '* * * * *', 'runner', '/home/runner/tint2/test/update_test_status.sh')
+  fabtools.cron.add_task('packaging_check', '10 */2 * * *', 'runner', '/home/runner/tint2/packaging/update_version_status.sh')
+
+
+@task(default=True)
+@roles('runner')
+def full_runner():
+  create_users()
+  install_deps()
+  pull_code()
+  add_cron_jobs()
--- a/test/regression.py
+++ b/test/regression.py
@@ -160,7 +160,7 @@ def test(tint2path, config, use_asan):
  start_wm()
  sleep(1)
  os.environ["DEBUG_FPS"] = "1"
-  os.environ["ASAN_OPTIONS"] = "detect_leaks=1"
+  os.environ["ASAN_OPTIONS"] = "detect_leaks=1:exitcode=0"
  tint2 = run([tint2path, "-c", config], True)
  if tint2.poll() != None:
    raise RuntimeError("tint2 failed to start")
@@ -214,7 +214,7 @@ def test(tint2path, config, use_asan):
  if use_asan:
    fps_status = ok
  else:
-    fps_status = ok if min_fps > 60 else warning if min_fps > 40 else error
+    fps_status = ok if min_fps > 30 else warning if min_fps > 20 else error
  print("FPS:", "min:", min_fps, "median:", med_fps, fps_status)
  if mem_status != ok or leak_status != ok or fps_status != ok:
    print("Output:")
@@ -285,6 +285,29 @@ def compile_and_report(src_dir, use_asan):
    print("Status: Succeeded in %.1f seconds" % (duration,), ok)


+def compile_remotely_and_report(host):
+  print_err("Compiling on {0}...".format(host))
+  print("# Compilation on {0}".format(host))
+  start = time.time()
+  c = run("ssh worker@{0} 'cd tint2 && git pull && mkdir -p build && rm -rf build && mkdir -p build && cd build && cmake .. && make && ./tint2 --version'".format(host), True)
+  out, _ = c.communicate()
+  duration = time.time() - start
+  if c.returncode != 0:
+    print("Status: Failed!", error)
+    print("Output:")
+    print("```\n" + out.strip() + "\n```")
+  if "warning:" in out:
+    print("Status: Succeeded with warnings!", warning)
+    print("Warnings:")
+    print("```", end="")
+    for line in out.split("\n"):
+      if "warning:" in line:
+        print(line, end="")
+    print("```", end="")
+  else:
+    print("Status: Succeeded in %.1f seconds" % (duration,), ok)
+
+
 def run_test(config, index, use_asan):
  print_err("Running test", index, "for config", config)
  print("# Test", index, "(ASAN on)" if use_asan else "")
@@ -350,6 +373,8 @@ def main():
  show_timestamp()
  show_git_info(args.src_dir)
  show_system_info()
+  compile_remotely_and_report("freebsd")
+  compile_remotely_and_report("openbsd")
  for use_asan in [True, False]:
    compile_and_report(args.src_dir, use_asan)
    run_tests(use_asan)
--- a/test/update_test_status.sh
+++ b/test/update_test_status.sh
@@ -1,5 +1,7 @@
 #!/bin/bash

+export PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
+
 set -e
 set -x

@@ -11,7 +13,7 @@ exec 2>&1
 cd ~/tint2
 git reset --hard
 git pull
-last=$(cat .last-reg-test)
+last=$(cat .last-reg-test || true)
 curr=$(git rev-parse --verify HEAD)
 [ "$last" == "$curr" ] && exit 0

--- a/themes/horizontal-text-only.tint2rc
+++ b/themes/horizontal-text-only.tint2rc
@@ -1,4 +1,4 @@
-#---- Generated by tint2conf 20b6 ----
+#---- Generated by tint2conf bb4a ----
 # See https://gitlab.com/o9000/tint2/wikis/Configure for 
 # full documentation of the configuration options.
 #-------------------------------------
@@ -15,6 +15,8 @@ color_stop = 70.000000 #1c1c1c 80
 rounded = 0
 border_width = 1
 border_sides = T
+border_content_tint_weight = 0
+background_content_tint_weight = 0
 background_color = #000000 80
 border_color = #333333 80
 gradient_id = 1
@@ -27,28 +29,34 @@ border_color_pressed = #555555 80
 rounded = 0
 border_width = 2
 border_sides = B
+border_content_tint_weight = 100
+background_content_tint_weight = 25
 background_color = #777777 0
-border_color = #777777 0
-background_color_hover = #777777 21
+border_color = #777777 100
+background_color_hover = #464646 100
 border_color_hover = #cccccc 30
-background_color_pressed = #5a5a5a 21
+background_color_pressed = #1e1e1e 100
 border_color_pressed = #777777 30

 # Background 3: Active task
 rounded = 0
 border_width = 2
 border_sides = B
-background_color = #ffffff 0
-border_color = #4d75ff 100
-background_color_hover = #ffffff 21
-border_color_hover = #4c73ff 100
-background_color_pressed = #989898 21
-border_color_pressed = #4c73ff 100
+border_content_tint_weight = 100
+background_content_tint_weight = 100
+background_color = #ffffff 100
+border_color = #d9d9d9 100
+background_color_hover = #ffffff 73
+border_color_hover = #d9d9d9 100
+background_color_pressed = #989898 73
+border_color_pressed = #d9d9d9 100

 # Background 4: Urgent task
 rounded = 0
 border_width = 0
 border_sides = TBLR
+border_content_tint_weight = 0
+background_content_tint_weight = 0
 background_color = #aa4400 100
 border_color = #aa7733 100
 background_color_hover = #aa4400 100
@@ -60,6 +68,8 @@ border_color_pressed = #aa7733 100
 rounded = 2
 border_width = 1
 border_sides = TBLR
+border_content_tint_weight = 0
+background_content_tint_weight = 0
 background_color = #ffffaa 100
 border_color = #999999 100
 background_color_hover = #ffffaa 100
@@ -71,6 +81,8 @@ border_color_pressed = #999999 100
 rounded = 0
 border_width = 2
 border_sides = B
+border_content_tint_weight = 0
+background_content_tint_weight = 0
 background_color = #777777 0
 border_color = #777777 0
 background_color_hover = #bdbdbd 21
@@ -82,12 +94,14 @@ border_color_pressed = #777777 100
 rounded = 0
 border_width = 2
 border_sides = B
+border_content_tint_weight = 0
+background_content_tint_weight = 0
 background_color = #ffffff 21
-border_color = #4c73ff 100
+border_color = #d9d9d9 100
 background_color_hover = #ffffff 21
-border_color_hover = #4d73ff 100
+border_color_hover = #d9d9d9 100
 background_color_pressed = #a9a9a9 21
-border_color_pressed = #4d73ff 100
+border_color_pressed = #d9d9d9 100

 #-------------------------------------
 # Panel
@@ -146,6 +160,8 @@ task_maximum_size = 120 35
 task_padding = 4 3 4
 task_font = Sans 8
 task_tooltip = 1
+task_thumbnail = 0
+task_thumbnail_size = 210
 task_font_color = #c6c6c6 100
 task_active_font_color = #ffffff 100
 task_icon_asb = 100 0 0
--- a/themes/tint2rc
+++ b/themes/tint2rc
@@ -1,11 +1,14 @@
-#---- Generated by tint2conf 2641 ----
+#---- Generated by tint2conf aeaf ----
 # See https://gitlab.com/o9000/tint2/wikis/Configure for 
 # full documentation of the configuration options.
 #-------------------------------------
+# Gradients
+#-------------------------------------
 # Backgrounds
 # Background 1: Panel
 rounded = 0
 border_width = 0
+border_sides = TBLR
 background_color = #000000 60
 border_color = #000000 30
 background_color_hover = #000000 60
@@ -16,6 +19,7 @@ border_color_pressed = #000000 30
 # Background 2: Default task, Iconified task
 rounded = 4
 border_width = 1
+border_sides = TBLR
 background_color = #777777 20
 border_color = #777777 30
 background_color_hover = #aaaaaa 22
@@ -26,6 +30,7 @@ border_color_pressed = #eaeaea 44
 # Background 3: Active task
 rounded = 4
 border_width = 1
+border_sides = TBLR
 background_color = #777777 20
 border_color = #ffffff 40
 background_color_hover = #aaaaaa 22
@@ -36,6 +41,7 @@ border_color_pressed = #eaeaea 44
 # Background 4: Urgent task
 rounded = 4
 border_width = 1
+border_sides = TBLR
 background_color = #aa4400 100
 border_color = #aa7733 100
 background_color_hover = #cc7700 100
@@ -46,8 +52,9 @@ border_color_pressed = #aa7733 100
 # Background 5: Tooltip
 rounded = 1
 border_width = 1
-background_color = #ffffaa 100
-border_color = #000000 100
+border_sides = TBLR
+background_color = #222222 100
+border_color = #333333 100
 background_color_hover = #ffffaa 100
 border_color_hover = #000000 100
 background_color_pressed = #ffffaa 100
@@ -65,7 +72,7 @@ panel_dock = 0
 panel_position = bottom center horizontal
 panel_layer = top
 panel_monitor = all
-primary_monitor_first = 0
+panel_shrink = 0
 autohide = 0
 autohide_show_timeout = 0
 autohide_hide_timeout = 0.5
@@ -81,12 +88,14 @@ mouse_pressed_icon_asb = 100 0 0
 #-------------------------------------
 # Taskbar
 taskbar_mode = single_desktop
+taskbar_hide_if_empty = 0
 taskbar_padding = 0 0 2
 taskbar_background_id = 0
 taskbar_active_background_id = 0
 taskbar_name = 1
 taskbar_hide_inactive_tasks = 0
 taskbar_hide_different_monitor = 0
+taskbar_hide_different_desktop = 0
 taskbar_always_show_all_desktop_tasks = 0
 taskbar_name_padding = 4 2
 taskbar_name_background_id = 0
@@ -106,6 +115,8 @@ urgent_nb_of_blink = 100000
 task_maximum_size = 150 35
 task_padding = 2 2 4
 task_tooltip = 1
+task_thumbnail = 0
+task_thumbnail_size = 210
 task_font_color = #ffffff 100
 task_background_id = 2
 task_active_background_id = 3
@@ -125,6 +136,7 @@ systray_sort = ascending
 systray_icon_size = 24
 systray_icon_asb = 100 0 0
 systray_monitor = 1
+systray_name_filter = 

 #-------------------------------------
 # Launcher
@@ -164,7 +176,10 @@ clock_dwheel_command =
 battery_tooltip = 1
 battery_low_status = 10
 battery_low_cmd = notify-send "battery low"
+battery_full_cmd = 
 battery_font_color = #ffffff 100
+bat1_format = 
+bat2_format = 
 battery_padding = 1 0
 battery_background_id = 0
 battery_hide = 101
@@ -180,7 +195,7 @@ ac_disconnected_cmd =
 # Tooltip
 tooltip_show_timeout = 0.5
 tooltip_hide_timeout = 0.1
-tooltip_padding = 2 2
+tooltip_padding = 4 4
 tooltip_background_id = 5
-tooltip_font_color = #222222 100
+tooltip_font_color = #dddddd 100

--- a/tint2.config
+++ b/tint2.config
@@ -6,3 +6,4 @@
 #define GETTEXT_PACKAGE
 #define HAVE_TRACING
 #define ENABLE_EXECINFO
+#define SN_API_NOT_YET_FROZEN
--- a/tint2.files
+++ b/tint2.files
@@ -237,3 +237,15 @@ src/signals.c
 src/signals.h
 src/tracing.c
 src/tracing.h
+src/util/test.c
+src/util/test.h
+src/util/bool.h
+src/util/colors.h
+src/util/print.c
+src/util/print.h
+src/util/test.c
+src/util/test.h
+src/util/tracing.h
+src/util/tracing.c
+src/util/signals.h
+src/util/signals.c
--- a/tint2.includes
+++ b/tint2.includes
@@ -1,22 +1,28 @@
 .
+./build
 ./src
 ./src/battery
 ./src/clock
-./src/execplugin
-./src/launcher
-./src/sysmon
 ./src/systray
 ./src/taskbar
-./src/tint2conf
+./src/launcher
 ./src/tooltip
 ./src/util
-/usr/include
-/usr/include/gtk-2.0
-/usr/include/glib-2.0
-/usr/include/gdk-pixbuf-2.0
-/usr/include/cairo
+./src/execplugin
+./src/button
+./src/freespace
+./src/separator
 /usr/include/pango-1.0
+/usr/include/cairo
+/usr/include/glib-2.0
+/usr/lib/x86_64-linux-gnu/glib-2.0/include
+/usr/include/pixman-1
+/usr/include/freetype2
+/usr/include/libpng12
+/usr/include/librsvg-2.0
+/usr/include/gdk-pixbuf-2.0
 /usr/include/startup-notification-1.0
+/usr/include
 po
 src/tint2conf/po
 src/freespace
Author	SHA1	Message	Date
o9000	63d0d98a5c	Release 16.0	2017-12-20 20:19:49 +01:00
o9000	e739023529	Set C standard version depending on feature tests	2017-12-20 19:59:35 +01:00
o9000	a7a9c5cdae	Regression tests: check compilation on BSD	2017-12-20 19:56:49 +01:00
o9000	50822bd2fd	Regression tests: check compilation on BSD	2017-12-20 19:43:23 +01:00
o9000	00c79073f0	Regression tests: check compilation on BSD	2017-12-20 19:32:29 +01:00
o9000	f5b36b37b6	Regression tests: check compilation on BSD	2017-12-20 19:24:18 +01:00
o9000	c635f46439	Feature test C11 generics, since GCC lies about compliance	2017-12-20 18:55:50 +01:00
o9000	16a359f944	Upodate readme	2017-12-20 18:21:14 +01:00
o9000	9a972f4c25	Upodate ide files	2017-12-20 17:51:19 +01:00
o9000	9d06ac0157	Upodate changelog	2017-12-20 16:54:22 +01:00
o9000	cfac6a645d	Fix alignment when taskbar_distribute_size = 1 and task_align is not left (issue #688 )	2017-12-20 16:47:55 +01:00
o9000	648c7c109f	Move files to util	2017-12-20 16:40:23 +01:00
o9000	8946f93254	New unit testing skeleton	2017-12-19 15:32:23 +01:00
o9000	58e030de5d	New unit testing skeleton	2017-12-19 15:28:57 +01:00
o9000	c2f8c210f8	gitignore	2017-12-19 12:36:18 +01:00
o9000	978e1c90fc	Update translations	2017-11-26 21:45:26 +01:00
o9000	3fba8aa1cf	tint2conf: Fix tooltip (issue #588 )	2017-11-26 21:40:07 +01:00
o9000	26251849c6	Include also timestamp in version number for unstable builds, so that version numbers increase	2017-11-26 18:38:17 +01:00
o9000	abeb7ce2e6	Include commit hash if possible in versioning script, if a non-stable tree is compiled	2017-11-26 18:28:25 +01:00
o9000	abdb1aeff9	Include commit hash if possible in versioning script, if a non-stable tree is compiled	2017-11-26 18:20:26 +01:00
o9000	7e383c395e	Include commit hash if possible in versioning script, if a non-stable tree is compiled	2017-11-26 18:14:46 +01:00
o9000	c3ed2dadf3	Fix issue #684	2017-11-26 17:22:58 +01:00
o9000	bd2ca94ffe	Cleanup versioning script	2017-11-26 16:22:12 +01:00
o9000	1753641fc9	Fix issue #684	2017-11-26 16:14:31 +01:00
o9000	467ea1332c	Taskbar: thumbnails (cleanup)	2017-11-26 10:24:40 +01:00
o9000	68c2ad7062	Taskbar: thumbnails (disable cairo method as it leaks heavily when screensaver is on)	2017-11-25 22:27:46 +01:00
o9000	cc5842463d	Simplify get_text_size	2017-11-23 22:38:55 +01:00
o9000	5e124c7a97	Separator: fix memory leak	2017-11-23 22:37:42 +01:00
o9000	07865142b2	Refactoring	2017-11-23 22:31:19 +01:00
o9000	0c71fda5e1	Button: fix memory leak	2017-11-23 22:28:26 +01:00
o9000	8eaf187984	Implement tinting by icon content (refactoring)	2017-11-23 22:05:41 +01:00
o9000	abe8a0eeb1	Implement tinting by icon content (do not apply task state asb effects)	2017-11-22 09:06:10 +01:00
o9000	d82d782541	Update authors	2017-11-21 13:30:46 +01:00
o9000	715eb556da	Taskbar: thumbnails (initialize settings)	2017-11-21 12:51:54 +01:00
o9000	b9e64da9da	Update translations	2017-11-21 12:40:27 +01:00
o9000	224b7fba82	Regenerate man page	2017-11-21 12:06:01 +01:00
o9000	d72fff9653	Taskbar: thumbnails (update doc)	2017-11-21 12:05:37 +01:00
o9000	67c3e47414	Implement tinting by icon content (config and documentation)	2017-11-21 12:04:36 +01:00
o9000	e96e7fbee7	Taskbar: thumbnails (fix bad copy paste)	2017-11-20 14:12:26 +01:00
o9000	65c91667f9	Implement tinting by icon content (bugfixes)	2017-11-20 10:15:12 +01:00
o9000	9f4087b471	Implement tinting by icon content (issue #638 ; thanks @heisenbug)	2017-11-19 22:15:24 +01:00
o9000	247687307b	Taskbar: thumbnails (update periodically only the active window)	2017-11-17 17:32:49 +01:00
o9000	2c9d1fdf7d	Taskbar: thumbnails (twaked blur a bit)	2017-11-17 17:25:53 +01:00
o9000	500b8f5bea	Taskbar: thumbnails (improved fixed point precision)	2017-11-17 17:09:46 +01:00
o9000	7e6f7df55e	Taskbar: thumbnails (interleave slow periodic throttling with event processing)	2017-11-17 15:53:23 +01:00
o9000	47201cab84	Taskbar: thumbnails (interleave slow periodic throttling with event processing)	2017-11-17 15:40:59 +01:00
o9000	f7d083904f	Timer: do not clear timers restarted from their own callback function - fix check	2017-11-17 15:40:48 +01:00
o9000	f11d30f076	Taskbar: thumbnails (only print debug info if DEBUG_THUMBNAILS environment variable is set)	2017-11-17 15:15:15 +01:00
o9000	c0eaa8274f	Taskbar: thumbnails (update every 1s for the active tooltip)	2017-11-17 15:08:34 +01:00
o9000	38488b8d75	Timer: do not clear timers restarted from their own callback function	2017-11-17 15:08:27 +01:00
o9000	07339c09a0	Taskbar: thumbnails (update every 1s for the active tooltip)	2017-11-17 11:45:42 +01:00
o9000	0521223899	Taskbar: thumbnails (interleave slow periodic throttling with event processing)	2017-11-17 08:19:23 +01:00
o9000	cbf3cebbb0	Taskbar: thumbnails (XShmGetImage - avoid leaking in X)	2017-11-16 12:14:09 +01:00
o9000	4b50446a7b	Taskbar: thumbnails (use slower but safed XGetImage)	2017-11-16 11:39:44 +01:00
o9000	e8a6c93b28	Fix tooltip use after free	2017-11-16 08:32:19 +01:00
o9000	5e6e1184fe	Taskbar: thumbnails (small fixes and disable shm for now)	2017-11-15 21:33:52 +01:00
o9000	89ab1fa6c4	Taskbar: thumbnails (make sure we are using rgb24)	2017-11-15 14:11:39 +01:00
o9000	e597973cd7	Taskbar: thumbnails (optimizations - get rid of XGetPixel calls)	2017-11-15 13:00:27 +01:00
o9000	ebe30774ac	Taskbar: thumbnails (make sure window is not minimized)	2017-11-15 12:14:37 +01:00
o9000	d463dcb5b4	Taskbar: thumbnails (optimizations)	2017-11-15 12:10:49 +01:00
o9000	23782a4414	Timer: fix use after free	2017-11-15 12:08:29 +01:00
o9000	1be85e66fe	Taskbar: thumbnails (optimizations)	2017-11-15 12:08:12 +01:00
o9000	2fe7efd4fe	Taskbar: thumbnails (optimizations)	2017-11-15 11:44:35 +01:00
o9000	1b6fd91611	Taskbar: thumbnails (optimizations)	2017-11-15 11:28:03 +01:00
o9000	5730725762	Taskbar: thumbnails (tint2conf)	2017-11-14 17:51:35 +01:00
o9000	87da8c76cc	Taskbar: thumbnails (config, tint2conf and doc)	2017-11-14 17:09:04 +01:00
o9000	e5ecc0c15d	Taskbar: thumbnails (use image size without cosidering frame)	2017-11-14 15:41:21 +01:00
o9000	812e306376	Taskbar: thumbnails (use gaussian filtering, seems faster)	2017-11-14 13:53:37 +01:00
o9000	3155a5fc89	Taskbar: thumbnails (profiling)	2017-11-14 13:08:53 +01:00
o9000	bc4af51e82	Taskbar: thumbnails (alignment)	2017-11-14 12:58:42 +01:00
o9000	01de174919	Taskbar: thumbnails (timers)	2017-11-14 12:21:08 +01:00
o9000	7ddb373cb4	Taskbar: thumbnails	2017-11-14 11:04:55 +01:00
o9000	8ba1f26309	Taskbar: thumbnails	2017-11-14 10:48:47 +01:00
o9000	5a867a83c6	Taskbar: thumbnails	2017-11-14 10:34:57 +01:00
o9000	8a7e7e4281	Update changelog	2017-11-10 13:52:21 +01:00
o9000	0e8a6dd961	Systray: warn on duplicate config option systray_name_filter (issue #652 )	2017-11-10 13:44:04 +01:00
o9000	c4a0ec4140	Executor: update tooltip documentation (fixes issue #676 )	2017-11-10 13:37:41 +01:00
o9000	07d907fc43	Add Spanish translation (contributed by Vicmz)	2017-11-10 13:23:03 +01:00
o9000	b1f83baf04	Update periodic testing scripts	2017-11-05 19:54:17 +01:00
o9000	1ff3404e56	Update periodic testing scripts	2017-11-05 19:51:09 +01:00
o9000	41190204b3	Update periodic testing script	2017-11-05 19:33:09 +01:00
o9000	5bc978ee44	Update periodic testing script	2017-11-05 19:16:02 +01:00
o9000	3b4028f443	Update periodic testing script	2017-11-05 19:14:34 +01:00
o9000	acc3ee9205	Update periodic testing script	2017-11-05 15:38:33 +01:00