Background Repeat
Cover screen
Image repeats to cover screen
Repeat-X
Image repeats along X axis
Repeat-X positions
Top, middle or bottom of screen
Repeat-Y
Image repeats along y axis
Repeat-Y positions
Left, middle or right of screen
Repeat background image to cover screen, or as a single row horizontally or vertically across screen.
Images like rain, snow, music notes, etc. can repeat to emulate weather conditions, etc.