I've been trying to change the background of a slider without any luck. What I'm trying to do is to change the background to a gradient going from red to green, created as an image with repeat-y, with an opacity set to something like .3 or .4 on the right side of the handle. So far I haven't even been able to make it change color.
Also, just on a side note I was wondering if it is at all possible to change the background color as you move the slider handle?