4 Replies
Michael Hinze

My guess is that this project contains several sliders; one slider that you move (hiker icon) and sliders at the bottom which use custom bitmaps as their thumb. All sliders refer to the same variable, but the sliders at the bottom have different start and end point, so that they move in the opposite direction. I had done something similar in this example here, where several sliders are driven by the same slider variable.