| Function | gdk_color_to_string | Convert a color to a #AABBCC string | 
| Function | set_foreground | Set the foreground color of a widget: | 
| Function | get_foreground | Return the foreground color of the widget as a string | 
| Function | set_background | Set the background color of a widget: | 
| Function | get_background | Return the background color of the widget as a string | 
| Function | quit_if_last | Undocumented | 
| Class | FadeOut | I am a helper class to draw the fading effect of the background |