This FAQ covers using a picture as the main background or as the group background and how to remove the group title.
As the Main Background
CTRL-Alt-S to Enter Settings
1 - Select Theme
2 - Select Show Advanced Settings
3 - Select Background
4 - Select Picture
5 - Choose Image – Select Fill, Stretch or Tile as appropriate
Note: Maximum Size 1MB and the resolution of the picture should match the resolution of the section of the screen for fit
6 - Save
As a Group Background
CTRL-Alt-S to Enter Settings
1 - Select Theme
2 - Select Show Advanced Settings
3 - Select Actions
4 - Select Overide for Appropriate Group
5 - Select Picture - Choose Image – Select Fill, Stretch or Tile as appropriate
Note: Maximum Size 1MB and should match the resolution of the section of the screen for fit
6 - Save
Optional – If you do not want the group header remove the text and icon
CTRL-Alt-S to Enter Settings
1 - Select General
2 - Select Action
3 - Select the Appropriate Group
4 - Delete Text in Name, Short Name and Description
5 - Uncheck Show on Appbar
6 - Click from Catalog and leave Icon Data blank
7 - Save
