If there are structural repetitions in the image, an image that's also large than a screen, one can assume it's tiled. For stills behind sprites (a big planet behind space invaders), one could put a normal picture there.
2D Levels
BlitzPlus Forums/BlitzPlus Beginners Area/2D LevelsThe forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.