Index: sweaver.module
===================================================================
--- sweaver.module	(revision 3056)
+++ sweaver.module	(working copy)
@@ -22,6 +22,11 @@
 define('SWEAVER_CLASSES_EXCLUDE', "clear\nclear-fix\nclear-block\nsweaver\nsweaver-hovered\nsweaver-clicked\nsweaver-clicked-temp");
 
 /**
+ * Default properties that can be used in custom css.
+ */
+define('SWEAVER_CTOOLS_ALLOWED_PROPERTIES', "-moz-border-radius\n-webkit-border-radius\nborder-top-right-radius\nborder-bottom-right-radius\nborder-bottom-left-radius\nborder-top-left-radius\nwebkit-border-top-right-radius\nwebkit-border-bottom-right-radius\nwebkit-border-bottom-left-radius\nwebkit-border-top-left-radius\nmoz-border-radius-topright\nmoz-border-radius-bottomright\nmoz-border-radius-bottomleft\nmoz-border-radius-topleft\nposition\ntop\nleft\nbottom\nright\nborder-collapse\nborder-spacing\nlist-style-image\nlist-style-type\nmin-width\nmax-width\nmin-height\nmax-height\nvisibility");
+
+/**
  * Default skin.
  */
 define('SWEAVER_SKIN', "default");
Index: plugins/sweaver_plugin_editor/sweaver_plugin_editor.admin.inc
===================================================================
--- plugins/sweaver_plugin_editor/sweaver_plugin_editor.admin.inc	(revision 3056)
+++ plugins/sweaver_plugin_editor/sweaver_plugin_editor.admin.inc	(working copy)
@@ -72,6 +72,14 @@
     '#wysiwyg' => FALSE,
   );
 
+  $form['sweaver_ctools_allowed_properties'] = array(
+    '#type' => 'textarea',
+    '#title' => t('Allowed Properties'),
+    '#default_value' => variable_get('sweaver_ctools_allowed_properties', SWEAVER_CTOOLS_ALLOWED_PROPERTIES),
+    '#description' => t('Define which properties can be used in custom css. Enter one selector per line.'),
+    '#wysiwyg' => FALSE,
+  );
+
   $form = system_settings_form($form);
   $form['#submit'][] = 'sweaver_settings_submit';
   return $form;
Index: plugins/sweaver_plugin_styles/sweaver_plugin_styles.inc
===================================================================
--- plugins/sweaver_plugin_styles/sweaver_plugin_styles.inc	(revision 3056)
+++ plugins/sweaver_plugin_styles/sweaver_plugin_styles.inc	(working copy)
@@ -439,30 +439,16 @@
    */
   function sweaver_ctools_allowed_properties() {
     $allowed = ctools_css_filter_default_allowed_properties();
-    $allowed_sweaver = array(
-      '-moz-border-radius',
-      '-webkit-border-radius',
-      'border-top-right-radius',
-      'border-bottom-right-radius',
-      'border-bottom-left-radius',
-      'border-top-left-radius',
-      'webkit-border-top-right-radius',
-      'webkit-border-bottom-right-radius',
-      'webkit-border-bottom-left-radius',
-      'webkit-border-top-left-radius',
-      'moz-border-radius-topright',
-      'moz-border-radius-bottomright',
-      'moz-border-radius-bottomleft',
-      'moz-border-radius-topleft',
-      'position',
-      'top',
-      'left',
-      'bottom',
-      'right',
-      'border-collapse',
-      'border-spacing',
-    );
-    return array_merge($allowed, $allowed_sweaver);
+    $allowed_properties = array();
+    $exploded = explode("\n", variable_get('sweaver_ctools_allowed_properties', SWEAVER_CTOOLS_ALLOWED_PROPERTIES));
+    foreach ($exploded as $key => $class) {
+      $trimmed = trim($class);
+      if (!empty($trimmed)) {
+        $allowed_properties[] = $trimmed;
+      }
+    }
+
+    return array_merge($allowed, $allowed_properties);
   }
 
   /**