Hm, this just changed today? I was working on something in the skinning system today but there isn't any reason this should have changed. Which skin was previously available that suddenly isn't, the purple and black one that matches the front site?
Edit: Try it now. The only issue using that skin will cause is that there are soon going to be certain integrated parts of the site that will have to use a specific variant of the 'romantic speckles' one, so it will be a little odd jumping back and forth! Anyway it should work again.