I'm trying to make a slider with custom graphics, so I figured a simple way is to hide the slider under a sprite and have the sprite change animation to represent the value of the slider. Problem is, it seems that making the slider invisible automatically disables user input on it, sliders seem to ALWAYS appear on top of sprites no matter their Z order, and sliders are not influenced by opacity value.
Seems really inflexible to me. Is there a way to hide the slider but still have it remain functional?
Edit: Looks like I needed to set opacity through CSS style (set CSS style "opacity" to "0.0"). Derp. Should've tried that earlier.