Ticket #3728: 3728.patch

_source/plugins/colorbutton/plugin.js

@@ -66 +66 @@
 
                                         panel.hide();
 
-                                        var style = new CKEDITOR.style( config['colorButton_' + type + 'Style'], { color : color || '#000' } );
+                                        var removeColor = null;
+                                        if ( !color )
+                                        {
+                                                var element = editor.getSelection().getStartElement();
+                                                removeColor = element .getComputedStyle( type == 'back' ? 'background-color' : 'color' );
+                                        }
 
+                                        var style = new CKEDITOR.style( config[ 'colorButton_' + type + 'Style' ], { color : color || removeColor } );
+
                                         editor.fire( 'saveSnapshot' );
                                         if ( color )
                                                 style.apply( editor.document );