This is exactly what I do, I've created several different color schemes and by making them different themes I can control which groups actually have access to them, for example, my New Member group only gets a limited choice, my Members get a little more and then my Senior Members get them all. Works for me real well and I am VERY happy with TAMAN's work (although I am a bit surprised to see that News Ticker and Custom Widgets are ONLY basic )!