I have been using Rockbox on my Sansa e250 player for about 2 weeks and love it. I have all the themes installed too. While I like some of them, I tend to go back to the default (Cabbiev2).
There are some that I do like & I have kept on there for a day or two, but when I switch to try another one and don't like it, I forgot what I previously had on. Is there anywhere I can go within Rockbox that will tell me what theme I'm currently using? This way I can go back to it if I don't like the new choice. Right now, I'm pretty much limited to going back to the cabbiev2 theme since I know its the default.