The contrast change to apply to the effect.
This property uses a #ClutterColor to represent the changes to each color channel. The range is [ 0, 255 ], with 127 as the value used to indicate no change; values smaller than 127 indicate a decrease in contrast, and values larger than 127 indicate an increase in contrast.
Whether or not the #ClutterActorMeta is enabled
The unique name to access the #ClutterActorMeta
The brightness change to apply to the effect.
This property uses a #ClutterColor to represent the changes to each color channel. The range is [ 0, 255 ], with 127 as the value used to indicate no change; values smaller than 127 indicate a decrease in brightness, and values larger than 127 indicate an increase in brightness.