Index: Classes/Utility/Extension.php
===================================================================
--- Classes/Utility/Extension.php	(Revision 3144)
+++ Classes/Utility/Extension.php	(Arbeitskopie)
@@ -163,17 +163,20 @@
 	 * @param string $pluginTitle is a speaking title of the plugin that will be displayed in the drop down menu in the backend
 	 * @return void
 	 */
-	public static function registerPlugin($extensionName, $pluginName, $pluginTitle) {
+	public static function registerPlugin($extensionName, $pluginName, $pluginTitle, $pluginIcon) {
 		if (empty($pluginName)) {
 			throw new InvalidArgumentException('The plugin name must not be empty', 1239891987);
 		}
 		if (empty($extensionName)) {
 			throw new InvalidArgumentException('The extension name was invalid (must not be empty and must match /[A-Za-z][_A-Za-z0-9]/)', 1239891989);
 		}
+		if (!empty($pluginIcon)) {
+			$pluginIcon = t3lib_extMgm::extRelPath($extensionName) . $pluginIcon;
+		}
 		$extensionName = str_replace(' ', '', ucwords(str_replace('_', ' ', $extensionName)));
 		$pluginSignature = strtolower($extensionName) . '_' . strtolower($pluginName);
 
-		t3lib_extMgm::addPlugin(array($pluginTitle, $pluginSignature), 'list_type');
+		t3lib_extMgm::addPlugin(array($pluginTitle, $pluginSignature, $pluginIcon), 'list_type');
 	}
 
 	/**