Brightness Plugin

Xfce Power Manger version 0.8.3.1 includes one panel plugin for LCD brightness control (possible other plugins might be added for future releases). The usage of the brightness plugin is simple; just add the plugin to the panel same way as the one used to add any other plugin; then click on the plugin; a slider will pop up that you move/scroll on it to change the brightness level of your screen. Of course the plugin will not work on a system with no back light panel.