Man, that's bloody brilliant!
Are you using MUIrexx or something? I played around with something similar for AIAB, but gave up - it was too much work, but you seem to have cracked it!
I'm curious to see the other themes too. Truly great stuff!
James
ps. You've even sussed-out how to use gradient backgrounds in MUI too; again my efforts never looked as good as this!
pps. Lol, I may be forced to switch over from my AIAB setup!