I’ve been making all of my skins on my iPad using Safari, and it’s been working great so far, but I just tried to use the HSL shift mode and nothing happened. It didn't change the hue, saturation, or lightness of anything, but for some reason it was still registered as a change, and when I went to undo it, nothing seemed to happen. I don’t know if it’s a problem with HSL shift not being accesible on mobile devices or if it’s something wrong with my device, but I just thought I should let someone know. :)