diff --git a/Gruntfile.js b/Gruntfile.js
index 3a796e943d..77616e164d 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -15,12 +15,15 @@
  *		npm install grunt --save-dev
  *		npm install grunt-contrib-uglify --save-dev
  *		npm install grunt-newer --save-dev
+ *		npm install grunt-contrib-cssmin --save-dev
  *
  * Building happens by running in your EGroupware directory:
  *
- *		grunt	# runs uglify for all targets with changed files
+ *		grunt	# runs uglify and cssmin for all targets with changed files
  * or
  *		grunt [newer:]uglify:<target>	# targets: api, et2, pixelegg, mobile, mail, calendar, ...
+ * or
+ *		grunt [newer:]cssmin:<target>	# targets: pixelegg, jdots
  *
  * app.js files can be added like mail target or, if you want automatic dependencies,
  * you need to add them in egw_framework::$bundle2minurl and egw_framework::get_bundles().
@@ -258,14 +261,136 @@ module.exports = function (grunt) {
 					]
 				}
 			}
+		},
+		cssmin: {
+			options: {
+				shorthandCompacting: false,
+				sourceMap: true,
+				relativeTo: "pixelegg\/css\/"
+			},
+			pixelegg: {
+				files: {
+					"pixelegg\/css\/pixelegg.min.css": [
+						"api\/js\/jquery\/chosen\/chosen.css",
+						"api\/js\/jquery\/jquery-ui\/redmond\/jquery-ui.css",
+						"api\/js\/jquery\/magicsuggest\/magicsuggest.css",
+						"api\/js\/jquery\/jpicker\/css\/jPicker-1.1.6.min.css",
+						"api\/js\/jquery\/jquery-ui-timepicker-addon.css",
+						"api\/js\/jquery\/blueimp\/css\/blueimp-gallery.min.css",
+						"api\/js\/dhtmlxtree\/codebase\/dhtmlXTree.css",
+						"api\/js\/egw_action\/test\/skins\/dhtmlxmenu_egw.css",
+						"api\/js\/etemplate\/lib\/jsdifflib\/diffview.css",
+						"api\/templates\/default\/etemplate2.css",
+						"pixelegg\/css\/pixelegg.css",
+						"phpgwapi\/templates\/idots\/print.css",
+						"jdots\/print.css",
+						"pixelegg\/print.css"
+					],
+					"pixelegg\/css\/mobile.min.css": [
+						"api\/js\/jquery\/chosen\/chosen.css",
+						"api\/js\/jquery\/jquery-ui\/redmond\/jquery-ui.css",
+						"api\/js\/jquery\/magicsuggest\/magicsuggest.css",
+						"api\/js\/jquery\/jpicker\/css\/jPicker-1.1.6.min.css",
+						"api\/js\/jquery\/jquery-ui-timepicker-addon.css",
+						"api\/js\/jquery\/blueimp\/css\/blueimp-gallery.min.css",
+						"api\/js\/dhtmlxtree\/codebase\/dhtmlXTree.css",
+						"api\/js\/egw_action\/test\/skins\/dhtmlxmenu_egw.css",
+						"api\/js\/etemplate\/lib\/jsdifflib\/diffview.css",
+						"api\/templates\/default\/etemplate2.css",
+						"pixelegg\/css\/mobile.css",
+						"phpgwapi\/templates\/idots\/print.css",
+						"jdots\/print.css",
+						"pixelegg\/print.css"
+					],
+					"pixelegg\/mobile\/fw_mobile.min.css": [
+						"api\/js\/jquery\/chosen\/chosen.css",
+						"api\/js\/jquery\/jquery-ui\/redmond\/jquery-ui.css",
+						"api\/js\/jquery\/magicsuggest\/magicsuggest.css",
+						"api\/js\/jquery\/jpicker\/css\/jPicker-1.1.6.min.css",
+						"api\/js\/jquery\/jquery-ui-timepicker-addon.css",
+						"api\/js\/jquery\/blueimp\/css\/blueimp-gallery.min.css",
+						"api\/js\/dhtmlxtree\/codebase\/dhtmlXTree.css",
+						"api\/js\/egw_action\/test\/skins\/dhtmlxmenu_egw.css",
+						"api\/js\/etemplate\/lib\/jsdifflib\/diffview.css",
+						"api\/templates\/default\/etemplate2.css",
+						"pixelegg\/mobile\/fw_mobile.css",
+						"phpgwapi\/templates\/idots\/print.css",
+						"jdots\/print.css",
+						"pixelegg\/print.css"
+					]
+				}
+			},
+			jdots: {
+				files: {
+					"jdots\/css\/high-contrast.min.css": [
+						"api\/js\/jquery\/chosen\/chosen.css",
+						"api\/js\/jquery\/jquery-ui\/redmond\/jquery-ui.css",
+						"api\/js\/jquery\/magicsuggest\/magicsuggest.css",
+						"api\/js\/jquery\/jpicker\/css\/jPicker-1.1.6.min.css",
+						"api\/js\/jquery\/jquery-ui-timepicker-addon.css",
+						"api\/js\/jquery\/blueimp\/css\/blueimp-gallery.min.css",
+						"api\/js\/dhtmlxtree\/codebase\/dhtmlXTree.css",
+						"api\/js\/egw_action\/test\/skins\/dhtmlxmenu_egw.css",
+						"api\/js\/etemplate\/lib\/jsdifflib\/diffview.css",
+						"api\/templates\/default\/etemplate2.css",
+						"phpgwapi\/templates\/default\/def_tutorials.css",
+						"phpgwapi\/templates\/idots\/css\/traditional.css",
+						"jdots\/egw_fw.css",
+						"jdots\/css\/jdots.css",
+						"jdots\/css\/high-contrast.css",
+						"phpgwapi\/templates\/idots\/print.css",
+						"jdots\/print.css"
+					],
+					"jdots\/css\/jdots.min.css": [
+						"api\/js\/jquery\/chosen\/chosen.css",
+						"api\/js\/jquery\/jquery-ui\/redmond\/jquery-ui.css",
+						"api\/js\/jquery\/magicsuggest\/magicsuggest.css",
+						"api\/js\/jquery\/jpicker\/css\/jPicker-1.1.6.min.css",
+						"api\/js\/jquery\/jquery-ui-timepicker-addon.css",
+						"api\/js\/jquery\/blueimp\/css\/blueimp-gallery.min.css",
+						"api\/js\/dhtmlxtree\/codebase\/dhtmlXTree.css",
+						"api\/js\/egw_action\/test\/skins\/dhtmlxmenu_egw.css",
+						"api\/js\/etemplate\/lib\/jsdifflib\/diffview.css",
+						"api\/templates\/default\/etemplate2.css",
+						"phpgwapi\/templates\/default\/def_tutorials.css",
+						"phpgwapi\/templates\/idots\/css\/traditional.css",
+						"jdots\/egw_fw.css",
+						"jdots\/css\/jdots.css",
+						"phpgwapi\/templates\/idots\/print.css",
+						"jdots\/print.css"
+					],
+					"jdots\/css\/orange-green.min.css": [
+						"api\/js\/jquery\/chosen\/chosen.css",
+						"api\/js\/jquery\/jquery-ui\/redmond\/jquery-ui.css",
+						"api\/js\/jquery\/magicsuggest\/magicsuggest.css",
+						"api\/js\/jquery\/jpicker\/css\/jPicker-1.1.6.min.css",
+						"api\/js\/jquery\/jquery-ui-timepicker-addon.css",
+						"api\/js\/jquery\/blueimp\/css\/blueimp-gallery.min.css",
+						"api\/js\/dhtmlxtree\/codebase\/dhtmlXTree.css",
+						"api\/js\/egw_action\/test\/skins\/dhtmlxmenu_egw.css",
+						"api\/js\/etemplate\/lib\/jsdifflib\/diffview.css",
+						"api\/templates\/default\/etemplate2.css",
+						"phpgwapi\/templates\/default\/def_tutorials.css",
+						"phpgwapi\/templates\/idots\/css\/traditional.css",
+						"jdots\/egw_fw.css",
+						"jdots\/css\/jdots.css",
+						"jdots\/css\/orange-green.css",
+						"phpgwapi\/templates\/idots\/print.css",
+						"jdots\/print.css"
+					]
+				}
+			}
 		}
 	});
 	// Load the plugin that provides the "uglify" task.
 	grunt.loadNpmTasks('grunt-contrib-uglify');
 
+	// Load plugin for css minificaton
+	grunt.loadNpmTasks('grunt-contrib-cssmin');
+
 	// Load the plugin that runs tasks only on modified files
 	grunt.loadNpmTasks('grunt-newer');
 
 	// Default task(s).
-	grunt.registerTask('default', ['newer:uglify']);
+	grunt.registerTask('default', ['newer:uglify', 'newer:cssmin']);
 };
diff --git a/api/js/egw_action/egw_menu_dhtmlx.js b/api/js/egw_action/egw_menu_dhtmlx.js
index 24bf44deb2..cf56ea272b 100644
--- a/api/js/egw_action/egw_menu_dhtmlx.js
+++ b/api/js/egw_action/egw_menu_dhtmlx.js
@@ -17,7 +17,12 @@
 */
 
 // Need CSS, or it doesn't really work
-if(typeof egw == 'function') egw(window).includeCSS(egw.webserverUrl + "/api/js/egw_action/test/skins/dhtmlxmenu_egw.css");
+//if(typeof egw == 'function') egw(window).includeCSS(egw.webserverUrl + "/api/js/egw_action/test/skins/dhtmlxmenu_egw.css");
+
+/**
+ *
+ * @param {type} _structure
+ */
 function egwMenuImpl(_structure)
 {
 	//Create a new dhtmlxmenu object
@@ -160,7 +165,7 @@ egwMenuImpl.prototype._translateStructure = function(_structure, _parentId, _idC
 	}
 
 	return counter;
-}
+};
 
 
 egwMenuImpl.prototype.showAt = function(_x, _y, _onHide)
@@ -182,11 +187,9 @@ egwMenuImpl.prototype.showAt = function(_x, _y, _onHide)
 		self.dhtmlxmenu.showContextMenu(_x, _y);
 		// TODO: Get keybard focus
 	}, 0);
-}
+};
 
 egwMenuImpl.prototype.hide = function()
 {
 	this.dhtmlxmenu.hide();
-}
-
-
+};
diff --git a/api/js/etemplate/et2_widget_color.js b/api/js/etemplate/et2_widget_color.js
index 42cb6286de..6e1dae7b1f 100644
--- a/api/js/etemplate/et2_widget_color.js
+++ b/api/js/etemplate/et2_widget_color.js
@@ -56,7 +56,8 @@ var et2_color = (function(){ "use strict"; return et2_inputWidget.extend(
 	init: function() {
 		this._super.apply(this, arguments);
 
-		this.egw().includeCSS("phpgwapi/js/jquery/jpicker/css/jPicker-1.1.6.min.css");
+		// included via etemplate2.css
+		//this.egw().includeCSS("phpgwapi/js/jquery/jpicker/css/jPicker-1.1.6.min.css");
 		this.input = this.$node = jQuery(document.createElement("span"));
 
 		// Translations
diff --git a/api/js/etemplate/et2_widget_diff.js b/api/js/etemplate/et2_widget_diff.js
index 98262ecec1..5f1b7cfbde 100644
--- a/api/js/etemplate/et2_widget_diff.js
+++ b/api/js/etemplate/et2_widget_diff.js
@@ -40,7 +40,8 @@ var et2_diff = (function(){ "use strict"; return et2_valueWidget.extend([et2_IDe
 		this._super.apply(this, arguments);
 		this.mini = true;
 
-		this.egw().includeCSS('etemplate/js/lib/jsdifflib/diffview.css');
+		// included via etemplate2.css
+		//this.egw().includeCSS('etemplate/js/lib/jsdifflib/diffview.css');
 		this.div = document.createElement("div");
 		jQuery(this.div).addClass('diff');
 	},
@@ -106,6 +107,8 @@ var et2_diff = (function(){ "use strict"; return et2_valueWidget.extend([et2_IDe
 
 	/**
 	 * Make the diff into a mini-diff
+	 *
+	 * @param {DOMNode|String} view
 	 */
 	minify: function(view) {
 		view = jQuery(view)
@@ -118,6 +121,11 @@ var et2_diff = (function(){ "use strict"; return et2_valueWidget.extend([et2_IDe
 			.prevAll().hide();
 	},
 
+	/**
+	 * Expand mini-diff
+	 *
+	 * @param {DOMNode|String} view
+	 */
 	un_minify: function(view) {
 		jQuery(view).removeClass('mini').show();
 		jQuery('th',view).show();
@@ -133,6 +141,8 @@ var et2_diff = (function(){ "use strict"; return et2_valueWidget.extend([et2_IDe
          * Build a list of attributes which can be set when working in the
          * "detached" mode in the _attrs array which is provided
          * by the calling code.
+		 *
+		 * @param {object} _attrs
          */
         getDetachedAttributes: function(_attrs) {
                 _attrs.push("value", "label");
diff --git a/api/js/etemplate/et2_widget_taglist.js b/api/js/etemplate/et2_widget_taglist.js
index 21240e1079..ec35e3e379 100644
--- a/api/js/etemplate/et2_widget_taglist.js
+++ b/api/js/etemplate/et2_widget_taglist.js
@@ -358,7 +358,7 @@ var et2_taglist = (function(){ "use strict"; return et2_selectbox.extend([et2_IR
 
 		$j('.ms-trigger',this.div).on('click', function(e) {
 			e.stopPropagation();
-		})
+		});
 		// Unbind change handler of widget's ancestor to stop it from bubbling
 		// taglist has its own onchange
 		$j(this.getDOMNode()).unbind('change.et2_inputWidget');
@@ -458,7 +458,7 @@ var et2_taglist = (function(){ "use strict"; return et2_selectbox.extend([et2_IR
 		this._query_server = false;
 
 		// Turn on local filtering, or trust server to do it
-		cfg.mode = typeof return_value === 'string' ? 'remote' : 'local'
+		cfg.mode = typeof return_value === 'string' ? 'remote' : 'local';
 
 		return return_value;
 	},
@@ -1251,5 +1251,5 @@ var et2_taglist_ro = (function(){ "use strict"; return et2_selectbox_ro.extend(
 et2_register_widget(et2_taglist_ro, ["taglist_ro","taglist_email_ro", "taglist_account_ro" ]);
 
 // Require css
-// TODO: merge into etemplate2.css with all other widgets when done
-if(typeof egw == 'function') egw(window).includeCSS(egw.webserverUrl + "/api/js/jquery/magicsuggest/magicsuggest.css");
+// included via etemplate2.css
+//if(typeof egw == 'function') egw(window).includeCSS(egw.webserverUrl + "/api/js/jquery/magicsuggest/magicsuggest.css");
diff --git a/api/src/Etemplate.php b/api/src/Etemplate.php
index 41ef2e8b65..8b6b298025 100644
--- a/api/src/Etemplate.php
+++ b/api/src/Etemplate.php
@@ -211,15 +211,6 @@ class Etemplate extends Etemplate\Widget\Template
 		}
 		else	// first call
 		{
-			// missing dependency, thought egw:uses jquery.jquery.tools does NOT work, maybe we should rename it to jquery-tools
-			// Framework::includeJS('jquery','jquery.tools.min');
-
-			// Include the jQuery-UI CSS - many more complex widgets use it
-			$theme = 'redmond';
-			Framework::includeCSS("/api/js/jquery/jquery-ui/$theme/jquery-ui-1.10.3.custom.css");
-			// Load our CSS after jQuery-UI, so we can override it
-			Framework::includeCSS('/api/templates/default/etemplate2.css');
-
 			// check if application of template has a app.js file --> load it
 			list($app) = explode('.',$this->name);
 			if (file_exists(EGW_SERVER_ROOT.'/'.$app.'/js/app.js'))
diff --git a/api/src/Framework.php b/api/src/Framework.php
index 2ac746f38d..d1065eba6f 100644
--- a/api/src/Framework.php
+++ b/api/src/Framework.php
@@ -814,43 +814,54 @@ abstract class Framework extends Framework\Extra
 
 		if (self::$load_default_css)
 		{
-			// Load these first
-			// Cascade should go:
-			//  Libs < etemplate2 < framework/theme < app < print
-			// Enhanced selectboxes (et1)
-			self::includeCSS('/api/js/jquery/chosen/chosen.css');
-
-			// eTemplate2 uses jQueryUI, so load it first so et2 can override if needed
-			self::includeCSS("/api/js/jquery/jquery-ui/redmond/jquery-ui.css");
-
-			// eTemplate2 - load in top so sidebox has styles too
-			self::includeCSS('/api/templates/default/etemplate2.css');
-
-			// Category styles
-			Categories::css(Categories::GLOBAL_APPNAME);
-
 			// For mobile user-agent we prefer mobile theme over selected one with a final fallback to theme named as template
 			$themes_to_check = array();
-			if (Header\UserAgent::mobile()) $themes_to_check[] = $this->template_dir.'/mobile/fw_mobile.css';
+			if (Header\UserAgent::mobile() || $GLOBALS['egw_info']['user']['preferences']['common']['theme'] == 'fw_mobile')
+			{
+				$themes_to_check[] = $this->template_dir.'/mobile/fw_mobile.css';
+			}
 			$themes_to_check[] = $this->template_dir.'/css/'.$GLOBALS['egw_info']['user']['preferences']['common']['theme'].'.css';
 			$themes_to_check[] = $this->template_dir.'/css/'.$this->template.'.css';
 			foreach($themes_to_check as $theme_css)
 			{
 				if (file_exists(EGW_SERVER_ROOT.$theme_css)) break;
 			}
-			self::includeCSS($theme_css);
+			$debug_minify = $GLOBALS['egw_info']['server']['debug_minify'] === 'True';
+			if (!$debug_minify && file_exists(EGW_SERVER_ROOT.($theme_min_css = str_replace('.css', '.min.css', $theme_css))))
+			{
+				error_log(__METHOD__."() Framework\CssIncludes::get()=".array2string(Framework\CssIncludes::get()));
+				self::includeCSS($theme_min_css);
+			}
+			else
+			{
+				// Load these first
+				// Cascade should go:
+				//  Libs < etemplate2 < framework/theme < app < print
+				// Enhanced selectboxes (et1)
+				self::includeCSS('/api/js/jquery/chosen/chosen.css');
 
+				// eTemplate2 uses jQueryUI, so load it first so et2 can override if needed
+				self::includeCSS("/api/js/jquery/jquery-ui/redmond/jquery-ui.css");
+
+				// eTemplate2 - load in top so sidebox has styles too
+				self::includeCSS('/api/templates/default/etemplate2.css');
+
+				// Category styles
+				Categories::css(Categories::GLOBAL_APPNAME);
+
+				self::includeCSS($theme_css);
+
+				// sending print css last, so it can overwrite anything
+				$print_css = $this->template_dir.'/print.css';
+				if(!file_exists(EGW_SERVER_ROOT.$print_css))
+				{
+					$print_css = '/phpgwapi/templates/idots/print.css';
+				}
+				self::includeCSS($print_css);
+			}
 			// search for app specific css file, so it can customize the theme
 			self::includeCSS($GLOBALS['egw_info']['flags']['currentapp'], 'app-'.$GLOBALS['egw_info']['user']['preferences']['common']['theme']) ||
 				self::includeCSS($GLOBALS['egw_info']['flags']['currentapp'], 'app');
-
-			// sending print css last, so it can overwrite anything
-			$print_css = $this->template_dir.'/print.css';
-			if(!file_exists(EGW_SERVER_ROOT.$print_css))
-			{
-				$print_css = '/phpgwapi/templates/idots/print.css';
-			}
-			self::includeCSS($print_css);
 		}
 		return array(
 			'app_css'   => $app_css,
@@ -950,7 +961,7 @@ abstract class Framework extends Framework\Extra
 	function list_themes()
 	{
 		$list = array();
-		if (($dh = @opendir(EGW_SERVER_ROOT.$this->template_dir . SEP . 'css')))
+		if (($dh = @opendir(EGW_SERVER_ROOT.$this->template_dir.'/css')))
 		{
 			while (($file = readdir($dh)))
 			{
@@ -1293,6 +1304,7 @@ abstract class Framework extends Framework\Extra
 		{
 			self::$load_default_css = false;
 		}
+		error_log(__METHOD__."('$app', '$name', append=$append, no_default=$no_default_css) ".function_backtrace());
 		return Framework\CssIncludes::add($app, $name, $append, $no_default_css);
 	}
 
@@ -1310,6 +1322,7 @@ abstract class Framework extends Framework\Extra
 
 		// add all css files from Framework::includeCSS()
 		$query = null;
+error_log(__METHOD__."() Framework\CssIncludes::get()=".array2string(Framework\CssIncludes::get()));
 		foreach(Framework\CssIncludes::get() as $path)
 		{
 			unset($query);
diff --git a/api/src/Framework/CssIncludes.php b/api/src/Framework/CssIncludes.php
index 20caed86b1..ce9c60f277 100644
--- a/api/src/Framework/CssIncludes.php
+++ b/api/src/Framework/CssIncludes.php
@@ -79,9 +79,21 @@ class CssIncludes
 	 *
 	 * @return string
 	 */
-	public static function get()
+	public static function get($resolve=false)
 	{
-		return self::$files;
+		if (!$resolve)
+		{
+			return self::$files;
+		}
+		$files = array();
+		foreach(self::$files as $path)
+		{
+			foreach(self::resolve_css_includes($path) as $path)
+			{
+				$files[] = $path;
+			}
+		}
+		return $files;
 	}
 
 	/**
@@ -93,7 +105,7 @@ class CssIncludes
 	{
 		// add all css files from self::includeCSS
 		$max_modified = 0;
-		$debug_minify = $GLOBALS['egw_info']['server']['debug_minify'] === 'True';
+		$debug_minify = true;	//no more dynamic minifying: $GLOBALS['egw_info']['server']['debug_minify'] === 'True';
 		$base_path = $GLOBALS['egw_info']['server']['webserver_url'];
 		if ($base_path[0] != '/') $base_path = parse_url($base_path, PHP_URL_PATH);
 		$css_files = '';
@@ -109,12 +121,14 @@ class CssIncludes
 				{
 					$css_files .= '<link href="'.$GLOBALS['egw_info']['server']['webserver_url'].$path.($query ? '&' : '?').$mod.'" type="text/css" rel="StyleSheet" />'."\n";
 				}
+				/* no more dynamic minifying
 				else
 				{
 					$css_file .= ($css_file ? ',' : '').substr($path, 1);
-				}
+				}*/
 			}
 		}
+		/* no more dynamic minifying
 		if (!$debug_minify)
 		{
 			$css = $GLOBALS['egw_info']['server']['webserver_url'].'/phpgwapi/inc/min/?';
@@ -123,7 +137,7 @@ class CssIncludes
 				($GLOBALS['egw_info']['server']['debug_minify'] === 'debug' ? '&debug' : '').
 				'&'.$max_modified;
 			$css_files = '<link href="'.$css.'" type="text/css" rel="StyleSheet" />'."\n".$css_files;
-		}
+		}*/
 		return $css_files;
 	}
 
diff --git a/api/templates/default/etemplate2.css b/api/templates/default/etemplate2.css
index 2cc3344616..74bc3434ad 100644
--- a/api/templates/default/etemplate2.css
+++ b/api/templates/default/etemplate2.css
@@ -13,6 +13,7 @@
 /*@import url("../../js/jquery/blueimp/css/blueimp-gallery.min.css");*/
 /*@import url("../../js/dhtmlxtree/codebase/dhtmlXTree.css");*/
 /*@import url("../../js/egw_action/test/skins/dhtmlxmenu_egw.css");*/
+/*@import url("../../js/etemplate/lib/jsdifflib/diffview.css");*/
 
 
 /**
diff --git a/package.json b/package.json
index eee7c02d42..3863c18321 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
   "repository": {},
   "devDependencies": {
     "grunt": "^0.4.5",
+    "grunt-contrib-cssmin": "^1.0.1",
     "grunt-contrib-uglify": "^0.11.1",
     "grunt-newer": "^1.1.2"
   }
diff --git a/updateGruntfile.php b/updateGruntfile.php
index cf5cdad8e9..58994deb80 100755
--- a/updateGruntfile.php
+++ b/updateGruntfile.php
@@ -10,6 +10,7 @@
  * @version $Id$
  */
 
+use EGroupware\Api\Framework;
 use EGroupware\Api\Framework\Bundle;
 
 if (php_sapi_name() !== 'cli') die("This is a commandline ONLY tool!\n");
@@ -77,6 +78,39 @@ foreach(Bundle::all() as $name => $files)
 	}
 }
 
+// add css for all templates and themes
+$cssmin =& $config['cssmin'];
+$GLOBALS['egw_info']['flags']['currentapp'] = '*grunt*';	// to no find any app.css files
+$GLOBALS['egw_info']['server']['debug_minify'] = 'True';	// otherwise we would only get minified file
+foreach(array('pixelegg','jdots')/*array_keys(Framework::list_templates())*/ as $template)
+{
+	$GLOBALS['egw_info']['server']['template_set'] = $template;
+	$tpl = Framework::factory();
+	$themes = $tpl->list_themes();
+	if ($template == 'pixelegg') $themes[] = 'fw_mobile';	// this is for mobile devices
+	foreach($themes as $theme)
+	{
+		// skip not working cssmin of pixelegg/traditional: Broken @import declaration of "../../etemplate/templates/default/etemplate2.css"
+		if ($template == 'pixelegg' && $theme == 'traditional') continue;
+		$GLOBALS['egw_info']['user']['preferences']['common']['theme'] = $theme;
+		// empty include list by not-existing file plus last true
+		Framework\CssIncludes::add('*grunt*', null, true, true);
+		$tpl->_get_css();
+		$dest = substr($tpl->template_dir, 1).($theme == 'fw_mobile' ? '/mobile/' : '/css/').$theme.'.min.css';
+		$cssmin[$template]['files'][$dest] =
+			// remove leading slash from src path
+			array_map(function($path)
+			{
+				return substr($path, 1);
+			},
+			// filter out all dynamic css, like categories.php
+			array_values(array_filter(Framework\CssIncludes::get(true), function($path)
+			{
+				return strpos($path, '.php?') === false;
+			})));
+	}
+}
+
 $new_json = str_replace("\n", "\n\t",
 	preg_replace_callback('/^( *)/m', function($matches)
 	{