diff --git a/pixelegg/css/mobile.css b/pixelegg/css/mobile.css
index a43f17da92..b581c46ae7 100644
--- a/pixelegg/css/mobile.css
+++ b/pixelegg/css/mobile.css
@@ -5456,6 +5456,7 @@ span.overlayContainer img.overlay {
 }
 #egw_fw_topmenu_info_items #topmenu_info_quick_add {
   position: relative;
+  /* do NOT show empty label */
 }
 #egw_fw_topmenu_info_items #topmenu_info_quick_add span#quick_add {
   float: right;
@@ -5474,54 +5475,6 @@ span.overlayContainer img.overlay {
   line-height: 0.6em;
   background-color: white;
 }
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container {
-  z-index: 1000;
-  position: absolute;
-  right: -54px !important;
-  top: 47px;
-  min-width: 160px !important;
-  width: 160px !important;
-  background: #FFFFFF;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container:before {
-  content: '';
-  position: absolute;
-  bottom: 51%;
-  left: 42%;
-  width: 0;
-  height: 0px;
-  border-left: 14px solid transparent;
-  border-right: 15px solid transparent;
-  border-bottom: 12px solid #aaa;
-  margin-bottom: 12px;
-  margin-left: 1px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container:after {
-  content: '';
-  position: absolute;
-  bottom: 50%;
-  left: 42%;
-  width: 0;
-  height: 0;
-  border-left: 15px solid transparent;
-  border-right: 15px solid transparent;
-  border-bottom: 12px solid #ffffff;
-  margin-bottom: 11px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-single span {
-  display: none;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container a.chzn-single.chzn-default {
-  border: 1px solid #bfc0bf;
-  border-radius: 0px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-drop {
-  border-radius: 0px;
-  margin-top: -2px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-results {
-  max-height: none;
-}
 #egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox {
   height: 0px;
   float: left;
@@ -5536,6 +5489,9 @@ span.overlayContainer img.overlay {
 #egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox::part(menu) {
   max-height: 60vh;
 }
+#egw_fw_topmenu_info_items #topmenu_info_quick_add et2-select#quick_add_selectbox sl-menu-item[value=""] {
+  display: none;
+}
 #egw_fw_topmenu_info_items img#topmenu_info_error {
   width: 16px;
   height: 16px;
diff --git a/pixelegg/css/monochrome.css b/pixelegg/css/monochrome.css
index 11e5246c89..079ca13d70 100644
--- a/pixelegg/css/monochrome.css
+++ b/pixelegg/css/monochrome.css
@@ -37,8 +37,8 @@
  */
 @media (prefers-color-scheme: dark) {
   html[data-darkmode='2'] {
-      background: #000;
-      filter: invert(1) hue-rotate(180deg) brightness(1);
+    background: #000;
+    filter: invert(1) hue-rotate(180deg) brightness(1);
   }
   html[data-darkmode='2'] #loginMainDiv {
     filter: invert(1) hue-rotate(180deg) !important;
@@ -51,44 +51,39 @@
  * DARK THEME
  */
 @media all {
-    html[data-darkmode='1'] {
-        background: #000;
-        filter: invert(1) hue-rotate(180deg) brightness(1);
-    }
-
-    html[data-darkmode='1'] sl-menu-item::part(prefix),
-    html[data-darkmode='1'] et2-select-country::part(prefix),
-    html[data-darkmode='1'] et2-email-tag::part(prefix),
-    html[data-darkmode='1'] et2-button::part(prefix),
-    html[data-darkmode='1'] *::part(image),
-    html[data-darkmode='1'] img,
-    html[data-darkmode='1'] #blueimp-gallery:not(:fullscreen),
-    html[data-darkmode='1'] #blueimp-gallery ol,
-    html[data-darkmode='1'] iframe,
-    html[data-darkmode='1'] #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_scrollarea_outerdiv .egw_fw_ui_sidemenu_entry_content .egw_fw_ui_category_active,
-    html[data-darkmode='1'] #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_scrollarea_outerdiv .egw_fw_ui_sidemenu_entry_content .egw_fw_ui_category_content,
-    html[data-darkmode='1'] video,
-    html[data-darkmode='1'] #loginMainDiv,
-    html[data-darkmode='1'] .et2_taglist_tags_icon {
-        filter: invert(1) hue-rotate(180deg) !important;
-    }
-
-    html[data-darkmode='1'] .dtree img {
-        filter: invert(0) hue-rotate(180deg) !important;
-    }
-
-    html[data-darkmode='1'] #blueimp-gallery video,
-    html[data-darkmode='1'] #blueimp-gallery .video-content {
-        filter: invert(0) hue-rotate(180deg) !important;
-    }
-
-    html[data-darkmode='1'] #loginMainDiv div#centerBox {
-        filter: invert(1) hue-rotate(180deg) !important;
-    }
-
-    html[data-darkmode='1'] div.dhtmlxMenu_egw_SubLevelArea_Polygon,
-    html[data-darkmode='1'] .egw_tooltip,
-    html[data-darkmode='1'] body .egw_message_wrapper,
+  html[data-darkmode='1'] {
+    background: #000;
+    filter: invert(1) hue-rotate(180deg) brightness(1);
+  }
+  html[data-darkmode='1'] sl-menu-item::part(prefix),
+  html[data-darkmode='1'] et2-select-country::part(prefix),
+  html[data-darkmode='1'] et2-email-tag::part(prefix),
+  html[data-darkmode='1'] et2-button::part(prefix),
+  html[data-darkmode='1'] *::part(image),
+  html[data-darkmode='1'] img,
+  html[data-darkmode='1'] #blueimp-gallery:not(:fullscreen),
+  html[data-darkmode='1'] #blueimp-gallery ol,
+  html[data-darkmode='1'] iframe,
+  html[data-darkmode='1'] #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_scrollarea_outerdiv .egw_fw_ui_sidemenu_entry_content .egw_fw_ui_category_active,
+  html[data-darkmode='1'] #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_scrollarea_outerdiv .egw_fw_ui_sidemenu_entry_content .egw_fw_ui_category_content,
+  html[data-darkmode='1'] video,
+  html[data-darkmode='1'] #loginMainDiv,
+  html[data-darkmode='1'] .et2_taglist_tags_icon {
+    filter: invert(1) hue-rotate(180deg) !important;
+  }
+  html[data-darkmode='1'] .dtree img {
+    filter: invert(0) hue-rotate(180deg) !important;
+  }
+  html[data-darkmode='1'] #blueimp-gallery video,
+  html[data-darkmode='1'] #blueimp-gallery .video-content {
+    filter: invert(0) hue-rotate(180deg) !important;
+  }
+  html[data-darkmode='1'] #loginMainDiv div#centerBox {
+    filter: invert(1) hue-rotate(180deg) !important;
+  }
+  html[data-darkmode='1'] div.dhtmlxMenu_egw_SubLevelArea_Polygon,
+  html[data-darkmode='1'] .egw_tooltip,
+  html[data-darkmode='1'] body .egw_message_wrapper,
   html[data-darkmode='1'] #egw_fw_header #egw_fw_topmenu,
   html[data-darkmode='1'] .ui-dialog,
   html[data-darkmode='1'] .box_shadow,
@@ -709,7 +704,7 @@
     width: 50% !important;
   }
   .nextmatch_header > .filters > select > option {
-      font-size: 12px;
+    font-size: 12px;
   }
   .nextmatch_header > .filters input {
     margin-right: 2ex;
@@ -903,21 +898,21 @@
     padding: 2px 1px;
   }
   .sidebox-favorites ul.favorites li.ui-menu-item a div.ui-icon-heart {
-      background-image: url(../../api/templates/default/images/favorites.svg);
-      background-size: 12px 12px;
-      background-position: 1px 0;
-      margin-right: 9px;
-      margin-left: 3px;
+    background-image: url(../../api/templates/default/images/favorites.svg);
+    background-size: 12px 12px;
+    background-position: 1px 0;
+    margin-right: 9px;
+    margin-left: 3px;
   }
   .sidebox-favorites ul.favorites li.ui-menu-item a div.sideboxstar {
-      width: 4px;
-      height: 12px;
-      margin-left: 4px;
-      margin-right: 10px;
-      background-image: url(../../api/templates/default/images/fav_filter.svg);
-      background-size: 12px 12px;
-      background-position: 0 0;
-      background-repeat: no-repeat;
+    width: 4px;
+    height: 12px;
+    margin-left: 4px;
+    margin-right: 10px;
+    background-image: url(../../api/templates/default/images/fav_filter.svg);
+    background-size: 12px 12px;
+    background-position: 0 0;
+    background-repeat: no-repeat;
   }
   .sidebox-favorites ul.favorites li.ui-menu-item img {
     width: 12px;
@@ -1157,8 +1152,8 @@ option:checked {
 /* Component containers
 ----------------------------------*/
 .ui-widget {
-    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
-    font-size: 1.1em;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+  font-size: 1.1em;
 }
 .ui-widget .ui-widget {
   font-size: 1em;
@@ -1167,8 +1162,8 @@ option:checked {
 .ui-widget select,
 .ui-widget textarea,
 .ui-widget button {
-    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
-    font-size: 12px;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+  font-size: 12px;
 }
 .ui-widget-content {
   /*.bordered (@color-hint,@color-hint,@color-hint,@color-hint);*/
@@ -1798,17 +1793,17 @@ html {
   height: 99.9% !important;
 }
 body {
-    background-image: none;
-    background-color: #ffffff;
-    color: #000000;
-    margin: 0px !important;
-    padding: 0px !important;
-    width: 99.9%;
-    height: 99.9% !important;
-    font-size: 12px;
-    line-height: 1.28;
-    font-weight: normal;
-    overflow: hidden;
+  background-image: none;
+  background-color: #ffffff;
+  color: #000000;
+  margin: 0px !important;
+  padding: 0px !important;
+  width: 99.9%;
+  height: 99.9% !important;
+  font-size: 12px;
+  line-height: 1.28;
+  font-weight: normal;
+  overflow: hidden;
 }
 /**
  * EGroupware: Stylite Pixelegg template
@@ -2208,18 +2203,18 @@ div#loginMainDiv.stockLoginBackground div#centerBox form {
 }
 #loginMainDiv div#centerBox form table.divLoginbox input[type="submit"],
 #loginMainDiv div#centerBox form table.divLoginbox select.onChangeSubmit {
-    background-color: #4177A2;
-    color: #ffffff;
-    font-size: 22px;
-    padding-left: 0;
-    width: 250px;
-    margin-top: 15px;
+  background-color: #4177A2;
+  color: #ffffff;
+  font-size: 22px;
+  padding-left: 0;
+  width: 250px;
+  margin-top: 15px;
 }
 #loginMainDiv div#centerBox form table.divLoginbox select.onChangeSubmit {
   padding-left: 25px;
 }
 #loginMainDiv div#centerBox form table.divLoginbox .registration {
-    font-size: 12px;
+  font-size: 12px;
 }
 #loginMainDiv div#centerBox form table.divLoginbox .registration a:not(:first-child):before {
   padding-left: 5px;
@@ -2951,16 +2946,16 @@ div.client_error_log tr td.stack > div {
 body,
 textarea,
 button {
-    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
 }
 #egw_fw_basecontainer {
-    position: fixed;
-    width: 100%;
-    height: 100%;
-    padding: 0px;
-    margin: 0px;
-    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
-    background-color: #ffffff;
+  position: fixed;
+  width: 100%;
+  height: 100%;
+  padding: 0px;
+  margin: 0px;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+  background-color: #ffffff;
 }
 input {
   /*    .Complete_Button_input;
@@ -3147,32 +3142,26 @@ table.table_passord_change td:first-child {
  */
 div.dhtmlxMenu_egw_SubLevelArea_Polygon {
   background: white;
-    border: 1px solid transparent;
-    border-radius: 2px;
+  border: 1px solid transparent;
+  border-radius: 2px;
 }
-
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub_item td.sub_item_hk div.sub_item_hk {
-    color: #373f3f;
+  color: #373f3f;
 }
-
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub_item_selected {
-    background-color: hsl(200, 98%, 39%) !important;
-    background-image: none !important;
+  background-color: hsl(200, 98%, 39%) !important;
+  background-image: none !important;
 }
-
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub_item_selected td.sub_item_icon img.sub_icon {
-    filter: invert(1) brightness(5);
+  filter: invert(1) brightness(5);
 }
-
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub_item_selected div.sub_item_text,
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl tr.sub_item_selected td.sub_item_hk div.sub_item_hk {
-    color: hsl(0, 0%, 100%);
+  color: hsl(0, 0%, 100%);
 }
-
 div.dhtmlxMenu_egw_SubLevelArea_Polygon table.dhtmlxMebu_SubLevelArea_Tbl div.sub_sep {
-    border-top: 1px solid #E6E6E6;
+  border-top: 1px solid #E6E6E6;
 }
-
 /**
  * EGroupware: Stylite Pixelegg template
  *
@@ -3268,8 +3257,8 @@ table.dialog-main-view {
 /*** dialogHeader on a box not table ***/
 /**********    Header Part ********************/
 .dialogHeader {
-    color: #000000;
-    border-bottom: 2px solid #696969;
+  color: #000000;
+  border-bottom: 2px solid #696969;
 }
 .dialogHeader input[type="radio"],
 .dialogHeader input.et2_radiobox {
@@ -3441,9 +3430,9 @@ div#etemplate\.tab_widget {
 /*#  button | button | button         delete  #*/
 /*##############################################*/
 .dialogFooterToolbar {
-    background-color: transparent;
-    border-top: 2px solid #696969;
-    /*.et2_selectbox {height: 32px; top: 0px; font-size: 1em;}*/
+  background-color: transparent;
+  border-top: 2px solid #696969;
+  /*.et2_selectbox {height: 32px; top: 0px; font-size: 1em;}*/
 }
 .dialogFooterToolbar td {
   padding: 5px 5px 0px 0px;
@@ -4023,6 +4012,7 @@ div#egwpopup_message {
 }
 .egw_fw_ui_app_header_container {
   height: auto;
+  display: none;
 }
 .egw_fw_ui_app_header_container .egw_fw_ui_app_header {
   padding: 1px 0 0 0;
@@ -4225,15 +4215,15 @@ span.overlayContainer img.overlay {
   display: inline;
 }
 #egw_fw_header #egw_fw_topmenu {
-    position: absolute;
-    display: none;
-    right: 5px;
-    width: 241px;
-    z-index: 1001;
-    top: 46px;
-    background: white;
-    box-shadow: 0 2px 8px hsla(240, 3.8%, 46.1%, 0.12);
-    border: 1px solid hsl(240, 6%, 90%);
+  position: absolute;
+  display: none;
+  right: 5px;
+  width: 241px;
+  z-index: 1001;
+  top: 46px;
+  background: white;
+  box-shadow: 0 2px 8px hsla(240, 3.8%, 46.1%, 0.12);
+  border: 1px solid hsl(240, 6%, 90%);
 }
 #egw_fw_header #egw_fw_topmenu a.powered_by {
   width: calc(100% - 20px);
@@ -4320,51 +4310,43 @@ span.overlayContainer img.overlay {
   /*category*/
   /*password*/
   /*help*/
-    /*Search*/
-    /*logout*/
-    /*print*/
+  /*Search*/
+  /*logout*/
+  /*print*/
 }
-
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul li {
-    color: #FFFFFF;
-    padding: 8px 10px;
-    border-top: #E6E6E6;
+  color: #FFFFFF;
+  padding: 8px 10px;
+  border-top: #E6E6E6;
 }
-
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul li:hover {
-    background: hsl(200, 98%, 39%);
-    color: hsl(0, 0%, 100%);
+  background: hsl(200, 98%, 39%);
+  color: hsl(0, 0%, 100%);
 }
-
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul li:hover a {
-    filter: invert(1) brightness(5);
+  filter: invert(1) brightness(5);
 }
-
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul li a {
-    color: #000000;
-    text-decoration: none;
-    padding-left: 26px;
-    line-height: 1.9em;
-    display: inline-block;
-    width: 100%;
+  color: #000000;
+  text-decoration: none;
+  padding-left: 26px;
+  line-height: 1.9em;
+  display: inline-block;
+  width: 100%;
 }
-
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul li a:hover {
   text-decoration: none !important;
 }
-
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul li:first-child :before {
-    border: none;
+  border: none;
 }
-
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul a {
-    background-size: 20px;
+  background-size: 20px;
 }
-
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul a#topmenu_home {
-    margin-left: 0px;
-    background-image: url(../../api/templates/default/images/topmenu_items/home.svg);
-    background-repeat: no-repeat;
+  margin-left: 0px;
+  background-image: url(../../api/templates/default/images/topmenu_items/home.svg);
+  background-repeat: no-repeat;
 }
 #egw_fw_header #egw_fw_topmenu #egw_fw_topmenu_items ul a#topmenu_prefs {
   margin-left: 0px;
@@ -4568,10 +4550,10 @@ span.overlayContainer img.overlay {
   top: 8px;
 }
 #egw_fw_main #egw_fw_tabs .egw_fw_ui_tabs_header .egw_fw_ui_tab_header h1 {
-    font-size: 12px;
-    line-height: 1em;
-    margin: 0 15px 2px 2px;
-    vertical-align: super;
+  font-size: 12px;
+  line-height: 1em;
+  margin: 0 15px 2px 2px;
+  vertical-align: super;
 }
 #egw_fw_main #egw_fw_tabs .egw_fw_ui_tabs_header .egw_fw_ui_tab_header img.egw_fw_ui_tab_icon {
   display: inline-block;
@@ -4694,13 +4676,13 @@ span.overlayContainer img.overlay {
   box-shadow: inset 1px 2px 1px rgba(0, 0, 0, 0.5);
 }
 #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_sidemenu_entry_header h1 {
-    margin: 0 0 10px 0;
-    padding-top: 0.4em;
-    padding-left: 3em;
-    color: #999999;
-    /*font-size: 12px;*/
-    font-size: 13px;
-    line-height: 17px;
+  margin: 0 0 10px 0;
+  padding-top: 0.4em;
+  padding-left: 3em;
+  color: #999999;
+  /*font-size: 12px;*/
+  font-size: 13px;
+  line-height: 17px;
 }
 #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_sidemenu_entry_header object {
   background-color: #FFFFFF;
@@ -4816,15 +4798,15 @@ span.overlayContainer img.overlay {
 }
 #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_sidemenu_entry_content .egw_fw_ui_category h1,
 #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_sidemenu_entry_content .egw_fw_ui_category h2 {
-    margin: 5px 0px 3px 5px;
-    padding: 0px 0px 0px 24px;
-    line-height: 1em;
-    font-size: 13px;
-    font-weight: normal;
-    background-image: url(../../api/templates/default/images/arrow_right.svg);
-    background-repeat: no-repeat;
-    background-position: left center;
-    background-size: 12px;
+  margin: 5px 0px 3px 5px;
+  padding: 0px 0px 0px 24px;
+  line-height: 1em;
+  font-size: 13px;
+  font-weight: normal;
+  background-image: url(../../api/templates/default/images/arrow_right.svg);
+  background-repeat: no-repeat;
+  background-position: left center;
+  background-size: 12px;
 }
 #egw_fw_sidebar #egw_fw_sidemenu .egw_fw_ui_sidemenu_entry_content .egw_fw_ui_category h2 {
   padding-bottom: 2px;
@@ -5081,12 +5063,12 @@ span.overlayContainer img.overlay {
   background-color: rgba(153, 204, 255, 0.4);
 }
 .egw_fw_ui_sidemenu_listitem img.egw_fw_ui_sidemenu_listitem_icon {
-    /*display: none;*/
-    width: 12px;
-    height: 12px;
-    padding: 0px;
-    margin: 0px 5px;
-    float: left;
+  /*display: none;*/
+  width: 12px;
+  height: 12px;
+  padding: 0px;
+  margin: 0px 5px;
+  float: left;
 }
 .egw_fw_ui_sidemenu_listitem input {
   height: 16px;
@@ -5286,70 +5268,60 @@ span.overlayContainer img.overlay {
   /* Opera and prob css3 final iteration */
 }
 #egw_fw_topmenu_info_items .topmenu_info_item {
-    height: 45px;
-    width: 45px;
-    border-left: 1px solid #bfc0bf;
-    display: inline-block;
-    padding-left: 0px;
-    float: right;
-    background-size: 20px;
-    background-position: center center;
-    background-repeat: no-repeat;
-    cursor: pointer;
+  height: 45px;
+  width: 45px;
+  border-left: 1px solid #bfc0bf;
+  display: inline-block;
+  padding-left: 0px;
+  float: right;
+  background-size: 20px;
+  background-position: center center;
+  background-repeat: no-repeat;
+  cursor: pointer;
 }
-
 #egw_fw_topmenu_info_items .topmenu_info_item:hover {
-    background-color: rgba(153, 204, 255, 0.4);
+  background-color: rgba(153, 204, 255, 0.4);
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_user_avatar span.fw_avatar_stat {
-    position: absolute;
+  position: absolute;
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_user_avatar span.stat1 {
-    width: 14px;
-    height: 14px;
-    position: absolute;
-    right: 30px;
-    bottom: 0px;
-    border-radius: 50%;
-    z-index: 100000;
-    background-size: 14px;
-    background-repeat: no-repeat;
-    color: #2d2b2b;
-    font-weight: bold;
-    text-align: center;
-    font-size: 10px;
-    line-height: 14px;
-    border: 2px solid #fbfbfb;
+  width: 14px;
+  height: 14px;
+  position: absolute;
+  right: 30px;
+  bottom: 0px;
+  border-radius: 50%;
+  z-index: 100000;
+  background-size: 14px;
+  background-repeat: no-repeat;
+  color: #2d2b2b;
+  font-weight: bold;
+  text-align: center;
+  font-size: 10px;
+  line-height: 14px;
+  border: 2px solid #fbfbfb;
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_user_avatar span.online {
-    background-color: #2de0a5;
+  background-color: #2de0a5;
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_user_avatar span.offline {
-    background-color: #cbced1;
+  background-color: #cbced1;
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_user_avatar span.away {
-    background-color: #ffd21f;
+  background-color: #ffd21f;
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_user_avatar span.busy {
-    background-color: #f5455c;
+  background-color: #f5455c;
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_user_avatar span.noconnection {
-    background-color: #E1E16D;
+  background-color: #E1E16D;
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_user_avatar span.noconnection:before {
-    content: "!";
+  content: "!";
 }
-
 #egw_fw_topmenu_info_items #topmenu_info_logout {
-    background-image: url(../../api/templates/default/images/logout.svg);
+  background-image: url(../../api/templates/default/images/logout.svg);
 }
 #egw_fw_topmenu_info_items #topmenu_info_logout a {
   width: 45px;
@@ -5464,6 +5436,7 @@ span.overlayContainer img.overlay {
 }
 #egw_fw_topmenu_info_items #topmenu_info_quick_add {
   position: relative;
+  /* do NOT show empty label */
 }
 #egw_fw_topmenu_info_items #topmenu_info_quick_add span#quick_add {
   float: right;
@@ -5482,54 +5455,6 @@ span.overlayContainer img.overlay {
   line-height: 0.6em;
   background-color: white;
 }
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container {
-  z-index: 1000;
-  position: absolute;
-  right: -54px !important;
-  top: 47px;
-  min-width: 160px !important;
-  width: 160px !important;
-  background: #FFFFFF;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container:before {
-  content: '';
-  position: absolute;
-  bottom: 51%;
-  left: 42%;
-  width: 0;
-  height: 0px;
-  border-left: 14px solid transparent;
-  border-right: 15px solid transparent;
-  border-bottom: 12px solid #aaa;
-  margin-bottom: 12px;
-  margin-left: 1px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container:after {
-  content: '';
-  position: absolute;
-  bottom: 50%;
-  left: 42%;
-  width: 0;
-  height: 0;
-  border-left: 15px solid transparent;
-  border-right: 15px solid transparent;
-  border-bottom: 12px solid #ffffff;
-  margin-bottom: 11px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-single span {
-  display: none;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container a.chzn-single.chzn-default {
-  border: 1px solid #bfc0bf;
-  border-radius: 0px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-drop {
-  border-radius: 0px;
-  margin-top: -2px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-results {
-  max-height: none;
-}
 #egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox {
   height: 0px;
   float: left;
@@ -5541,6 +5466,12 @@ span.overlayContainer img.overlay {
 #egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox::part(form-control) {
   margin-left: -3em;
 }
+#egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox::part(menu) {
+  max-height: 60vh;
+}
+#egw_fw_topmenu_info_items #topmenu_info_quick_add et2-select#quick_add_selectbox sl-menu-item[value=""] {
+  display: none;
+}
 #egw_fw_topmenu_info_items img#topmenu_info_error {
   width: 16px;
   height: 16px;
@@ -5691,22 +5622,22 @@ button.image_button {
  * @version $Id: layout_table.less 3089 2014-06-11 14:02:57Z pixelegg $
  */
 .sbHolder {
-    /*.box_shadow_standard_light;*/
-    width: auto;
-    margin: 5px 0em 5px 0px;
-    padding: 3px;
-    outline: none;
-    display: inline-block;
-    -webkit-appearance: none;
-    -moz-appearance: none;
-    appearance: none;
-    cursor: pointer;
-    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
-    font-size: 1.2em;
-    font-weight: normal;
-    height: 30px;
-    position: relative;
-    width: 10em;
+  /*.box_shadow_standard_light;*/
+  width: auto;
+  margin: 5px 0em 5px 0px;
+  padding: 3px;
+  outline: none;
+  display: inline-block;
+  -webkit-appearance: none;
+  -moz-appearance: none;
+  appearance: none;
+  cursor: pointer;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+  font-size: 1.2em;
+  font-weight: normal;
+  height: 30px;
+  position: relative;
+  width: 10em;
 }
 .sbHolder:hover {
   -webkit-box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.6);
@@ -5904,17 +5835,17 @@ table.egwGridView_outer thead tr th {
   background-color: #f8f8f8;
 }
 table.egwGridView_outer thead tr th:hover {
-    background-color: #f0f0f0;
-    color: #ffffff;
-    /*border-right: 5px solid white;*/
-    background-image: url(../../api/templates/default/images/hint-arrow-right.png);
-    background-position: right bottom;
-    background-repeat: no-repeat;
-    background-size: 15px 15px;
-    -webkit-transition: all 0s ease-out;
-    -moz-transition: all 0s ease-out;
-    -o-transition: all 0s ease-out;
-    transition: all 0s ease-out;
+  background-color: #f0f0f0;
+  color: #ffffff;
+  /*border-right: 5px solid white;*/
+  background-image: url(../../api/templates/default/images/hint-arrow-right.png);
+  background-position: right bottom;
+  background-repeat: no-repeat;
+  background-size: 15px 15px;
+  -webkit-transition: all 0s ease-out;
+  -moz-transition: all 0s ease-out;
+  -o-transition: all 0s ease-out;
+  transition: all 0s ease-out;
   /*transition-delay: 1s;*/
 }
 table.egwGridView_outer thead tr th:active {
diff --git a/pixelegg/css/pixelegg.css b/pixelegg/css/pixelegg.css
index 2b9fcdcbfb..a45eaa7864 100644
--- a/pixelegg/css/pixelegg.css
+++ b/pixelegg/css/pixelegg.css
@@ -5446,6 +5446,7 @@ span.overlayContainer img.overlay {
 }
 #egw_fw_topmenu_info_items #topmenu_info_quick_add {
   position: relative;
+  /* do NOT show empty label */
 }
 #egw_fw_topmenu_info_items #topmenu_info_quick_add span#quick_add {
   float: right;
@@ -5464,54 +5465,6 @@ span.overlayContainer img.overlay {
   line-height: 0.6em;
   background-color: white;
 }
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container {
-  z-index: 1000;
-  position: absolute;
-  right: -54px !important;
-  top: 47px;
-  min-width: 160px !important;
-  width: 160px !important;
-  background: #FFFFFF;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container:before {
-  content: '';
-  position: absolute;
-  bottom: 51%;
-  left: 42%;
-  width: 0;
-  height: 0px;
-  border-left: 14px solid transparent;
-  border-right: 15px solid transparent;
-  border-bottom: 12px solid #aaa;
-  margin-bottom: 12px;
-  margin-left: 1px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container:after {
-  content: '';
-  position: absolute;
-  bottom: 50%;
-  left: 42%;
-  width: 0;
-  height: 0;
-  border-left: 15px solid transparent;
-  border-right: 15px solid transparent;
-  border-bottom: 12px solid #ffffff;
-  margin-bottom: 11px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-single span {
-  display: none;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container a.chzn-single.chzn-default {
-  border: 1px solid #bfc0bf;
-  border-radius: 0px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-drop {
-  border-radius: 0px;
-  margin-top: -2px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-results {
-  max-height: none;
-}
 #egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox {
   height: 0px;
   float: left;
@@ -5526,6 +5479,9 @@ span.overlayContainer img.overlay {
 #egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox::part(menu) {
   max-height: 60vh;
 }
+#egw_fw_topmenu_info_items #topmenu_info_quick_add et2-select#quick_add_selectbox sl-menu-item[value=""] {
+  display: none;
+}
 #egw_fw_topmenu_info_items img#topmenu_info_error {
   width: 16px;
   height: 16px;
diff --git a/pixelegg/less/layout_raster_buttons.less b/pixelegg/less/layout_raster_buttons.less
index b5b7d4883c..10214bf6de 100644
--- a/pixelegg/less/layout_raster_buttons.less
+++ b/pixelegg/less/layout_raster_buttons.less
@@ -236,52 +236,6 @@
 		// quick_add selectbox
 		// ADD different APPs
 
-		.chzn-container {
-			z-index: 1000;
-			position: absolute;
-			right: -54px !important;
-			top: 47px;
-			min-width: 160px !important;
-			width: 160px !important;
-			background: @gray_0;
-			&:before {
-				content: '';
-				position: absolute;
-				bottom: 51%;
-				left: 42%;
-				width: 0;
-				height: 0px;
-				border-left: 14px solid transparent;
-				border-right: 15px solid transparent;
-				border-bottom: 12px solid #aaa;
-				margin-bottom: 12px;
-				margin-left: 1px;
-			}
-			&:after {
-				content: '';
-				position: absolute;
-				bottom: 50%;
-				left: 42%;
-				width: 0;
-				height: 0;
-				border-left: 15px solid transparent;
-				border-right: 15px solid transparent;
-				border-bottom: 12px solid #ffffff;
-				margin-bottom: 11px;
-			}
-			.chzn-single span {display: none;}
-			a.chzn-single.chzn-default {
-				border: 1px solid #bfc0bf;
-				border-radius: 0px;
-			}
-			.chzn-drop {
-				border-radius: 0px;
-				margin-top: -2px;
-			}
-			.chzn-results {
-				max-height: none;
-			}
-		}
 		#quick_add_selectbox {
 			height: 0px;
 			float: left;
@@ -296,6 +250,12 @@
 		#quick_add_selectbox::part(menu) {
 			max-height: 60vh;
 		}
+		/* do NOT show empty label */
+		et2-select#quick_add_selectbox {
+			sl-menu-item[value=""] {
+				display: none;
+			}
+		}
     }
 
     // ##############################################################################
@@ -351,4 +311,4 @@ div#topmenu_info_update{
 		.rounded(10px);
 		padding: 5px;
 	}
-}
+}
\ No newline at end of file
diff --git a/pixelegg/mobile/fw_mobile.css b/pixelegg/mobile/fw_mobile.css
index 3043a85cd9..4269262cfb 100644
--- a/pixelegg/mobile/fw_mobile.css
+++ b/pixelegg/mobile/fw_mobile.css
@@ -5467,6 +5467,7 @@ span.overlayContainer img.overlay {
 }
 #egw_fw_topmenu_info_items #topmenu_info_quick_add {
   position: relative;
+  /* do NOT show empty label */
 }
 #egw_fw_topmenu_info_items #topmenu_info_quick_add span#quick_add {
   float: right;
@@ -5485,54 +5486,6 @@ span.overlayContainer img.overlay {
   line-height: 0.6em;
   background-color: white;
 }
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container {
-  z-index: 1000;
-  position: absolute;
-  right: -54px !important;
-  top: 47px;
-  min-width: 160px !important;
-  width: 160px !important;
-  background: #FFFFFF;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container:before {
-  content: '';
-  position: absolute;
-  bottom: 51%;
-  left: 42%;
-  width: 0;
-  height: 0px;
-  border-left: 14px solid transparent;
-  border-right: 15px solid transparent;
-  border-bottom: 12px solid #aaa;
-  margin-bottom: 12px;
-  margin-left: 1px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container:after {
-  content: '';
-  position: absolute;
-  bottom: 50%;
-  left: 42%;
-  width: 0;
-  height: 0;
-  border-left: 15px solid transparent;
-  border-right: 15px solid transparent;
-  border-bottom: 12px solid #ffffff;
-  margin-bottom: 11px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-single span {
-  display: none;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container a.chzn-single.chzn-default {
-  border: 1px solid #bfc0bf;
-  border-radius: 0px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-drop {
-  border-radius: 0px;
-  margin-top: -2px;
-}
-#egw_fw_topmenu_info_items #topmenu_info_quick_add .chzn-container .chzn-results {
-  max-height: none;
-}
 #egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox {
   height: 0px;
   float: left;
@@ -5547,6 +5500,9 @@ span.overlayContainer img.overlay {
 #egw_fw_topmenu_info_items #topmenu_info_quick_add #quick_add_selectbox::part(menu) {
   max-height: 60vh;
 }
+#egw_fw_topmenu_info_items #topmenu_info_quick_add et2-select#quick_add_selectbox sl-menu-item[value=""] {
+  display: none;
+}
 #egw_fw_topmenu_info_items img#topmenu_info_error {
   width: 16px;
   height: 16px;