Every MUI object has its own background setting. The background is displayed ''behind'' the actual object contents, e.g. behind a the text of a text object or behind the image of an image object.
This attribute takes the same values as MUIA_Image_Spec, please refer to autodocs of image class for a complete description.
An object without a specific background setting will inherit the pattern from its parent group. The default background for a window and many other background patterns are adjustable with the preferences program.
Only a few MUII_xxxxxxx tags make sense as background. Important are:
MUII_BACKGROUND |
MUII_SHADOW |
MUII_SHINE |
MUII_FILL |
MUII_SHADOWBACK |
MUII_SHADOWFILL |
MUII_SHADOWSHINE |
MUII_FILLBACK |
MUII_FILLSHINE |
MUII_SHINEBACK |
MUII_SHINEBACK2 |
One of MUI's predefined pattern. These are not configurable by the user and will always look the same.