New Less Theming structure disable theme components by using @prev-* variables.

less/gridview.less

@@ -7,7 +7,8 @@
 }
 
 .grid-view .filters input,
-.grid-view .filters select {;
+.grid-view .filters select {
+   @import (reference, multiple) "form.less";
   .form-control;
   border-radius: 4px;
   font-size: 12px;

less/humhub.less

@@ -1,36 +1,181 @@
-@import "base.less";
-@import "topbar.less";
-@import "login.less";
-@import "dropdown.less";
-@import "media.less";
-@import "panel.less";
-@import "installer.less";
-@import "pagination.less";
-@import "bootstrap.less";
-@import "nav.less";
-@import "button.less";
-@import "form.less";
-@import "badge.less";
-@import "popover.less";
-@import "list-group.less";
-@import "modal.less";
-@import "tooltip.less";
-@import "progress.less";
-@import "table.less";
-@import "comment.less";
-@import "gridview.less";
-@import "oembed.less";
-@import "activities.less";
-@import "stream.less";
-@import "space.less";
-@import "file.less";
-@import "tour.less";
-@import "mentioning.less";
-@import "loader.less";
-@import "markdown.less";
-@import "sidebar.less";
-@import "datepicker.less";
-@import "user-feedback.less";
-@import "tags.less";
-@import "installed.less";
+// Import base components. Components can be deactivated by @prev-* variables.
+@prev-base: false;
+& when not(@prev-base) {
+    @import "base.less";
+}
+
+@prev-topbar: false;
+& when not(@prev-topbar) {
+    @import "topbar.less";
+}
+
+@prev-login: false;
+& when not(@prev-login) {
+    @import "login.less";
+}
+
+@prev-dropdown: false;
+& when not(@prev-dropdown) {
+    @import "dropdown.less";
+}
+
+@prev-media: false;
+& when not(@prev-media) {
+    @import "media.less";
+}
+
+@prev-panel: false;
+& when not(@prev-panel) {
+    @import "panel.less";
+}
+
+@prev-installer: false;
+& when not(@prev-installer) {
+    @import "installer.less";
+}
+
+@prev-pagination: false;
+& when not(@prev-pagination) {
+    @import "pagination.less";
+}
+
+@prev-well: false;
+& when not(@prev-well) {
+    @import "well.less";
+}
+
+@prev-nav: false;
+& when not(@prev-nav) {
+    @import "nav.less";
+}
+
+@prev-button: false;
+& when not(@prev-button) {
+    @import "button.less";
+}
+
+@prev-form: false;
+& when not(@prev-form) {
+    @import "form.less";
+}
+
+@prev-notification: false;
+& when not(@prev-notification) {
+    @import "notification.less";
+}
+
+@prev-badge: false;
+& when not(@prev-badge) {
+    @import "badge.less";
+}
+
+@prev-popover: false;
+& when not(@prev-popover) {
+    @import "popover.less";
+}
+
+@prev-list-group: false;
+& when not(@prev-list-group) {
+    @import "list-group.less";
+}
+
+@prev-modal: false;
+& when not(@prev-modal) {
+    @import "modal.less";
+}
+
+@prev-module: false;
+& when not(@prev-module) {
+    @import "module.less";
+}
+
+@prev-tooltip: false;
+& when not(@prev-tooltip) {
+    @import "tooltip.less";
+}
+
+@prev-progress: false;
+& when not(@prev-progress) {
+    @import "progress.less";
+}
+
+@prev-table: false;
+& when not(@prev-table) {
+    @import "table.less";
+}
+
+@prev-comment: false;
+& when not(@prev-comment) {
+    @import "comment.less";
+}
+
+@prev-gridview: false;
+& when not(@prev-gridview) {
+    @import "gridview.less";
+}
+
+@prev-oembed: false;
+& when not(@prev-oembed) {
+    @import "oembed.less";
+}
+
+@prev-activities: false;
+& when not(@prev-activities) {
+    @import "activities.less";
+}
+
+@prev-stream: false;
+& when not(@prev-stream) {
+    @import "stream.less";
+}
+
+@prev-space: false;
+& when not(@prev-space) {
+    @import "space.less";
+}
+
+@prev-file: false;
+& when not(@prev-file) {
+    @import "file.less";
+}
+
+@prev-tour: false;
+& when not(@prev-tour) {
+    @import "tour.less";
+}
+
+@prev-mentioning: false;
+& when not(@prev-mentioning) {
+    @import "mentioning.less";
+}
+
+@prev-loader: false;
+& when not(@prev-loader) {
+    @import "loader.less";
+}
+
+@prev-markdown: false;
+& when not(@prev-markdown) {
+    @import "markdown.less";
+}
+
+@prev-sidebar: false;
+& when not(@prev-sidebar) {
+    @import "sidebar.less";
+}
+
+@prev-datepicker: false;
+& when not(@prev-datepicker) {
+    @import "datepicker.less";
+}
+
+@prev-user-feedback: false;
+& when not(@prev-user-feedback) {
+    @import "user-feedback.less";
+}
+
+@prev-tags: false;
+& when not(@prev-tags) {
+    @import "tags.less";
+}
 

less/table.less

@@ -2,23 +2,23 @@
 // Tables
 // --------------------------------------------------
 table {
-  margin-bottom:0px !important;
-  th {
-    font-size: 11px;
-    color: @font4;
-    font-weight: normal;
-  }
-  thead tr th {
-    border: none !important;
-  }
-  .time {
-    font-size: 12px;
-  }
-  td {
-    a:hover {
-      color: @info;
+    margin-bottom:0px !important;
+    th {
+        font-size: 11px;
+        color: @font4;
+        font-weight: normal;
+    }
+    thead tr th {
+        border: none !important;
+    }
+    .time {
+        font-size: 12px;
+    }
+    td {
+        a:hover {
+            color: @info;
+        }
     }
-  }
 }
 
 .table > thead > tr > th,
@@ -27,12 +27,21 @@ table {
 .table > thead > tr > td,
 .table > tbody > tr > td,
 .table > tfoot > tr > td {
-  padding: 10px 10px 10px 0;
+    padding: 10px 10px 10px 0;
 
-  select {
-    font-size: 12px;
-    padding: 4px 8px;
-    height: 30px;
-    margin: 0;
-  }
+    select {
+        font-size: 12px;
+        padding: 4px 8px;
+        height: 30px;
+        margin: 0;
+    }
+}
+
+.table-middle > thead > tr > th,
+.table-middle > tbody > tr > th,
+.table-middle > tfoot > tr > th,
+.table-middle > thead > tr > td,
+.table-middle > tbody > tr > td,
+.table-middle > tfoot > tr > td {
+    vertical-align: middle !important;
 }

less/well.less

@@ -1,7 +1,3 @@
-//
-// Overwrite of some bootstrap components
-// --------------------------------------------------
-
 //
 // Well
 // --------------------------------------------------

themes/HumHub/css/theme.less

@@ -1950,6 +1950,8 @@ table {
   }
 }
 
+
+
 //
 // Comments
 // --------------------------------------------------
@@ -3179,4 +3181,13 @@ img.bounceIn {
 
 .file-preview-content {
     cursor: pointer;
+}
+
+.table-middle > thead > tr > th,
+.table-middle > tbody > tr > th,
+.table-middle > tfoot > tr > th,
+.table-middle > thead > tr > td,
+.table-middle > tbody > tr > td,
+.table-middle > tfoot > tr > td {
+    vertical-align: middle !important;
 }

themes/HumHub/less/build.less

@@ -1,15 +1,15 @@
 // Edit this if your theme folder resides outside of your humhub/themes directory.
-@HUMHUB:  "../../../../less";
+@HUMHUB:  "../../../less";
 
 // Import default variables and mixins
 @import "@{HUMHUB}/variables.less";
 @import "@{HUMHUB}/mixins.less";
 
-// Overwrite default variables and mixins here
-@import "variables.less";
-
 // Import default less
 @import "@{HUMHUB}/humhub.less";
 
+// Overwrite default variables and mixins here
+@import "variables.less";
+
 // Overwrite default selectors here
 @import "theme.less";