hehe, not Ex not even close :P
ok, so far, heres plan:
i'll take few themes and see what files are there and where do they belong in ui...
.if ASM:
i hope i will not have to use Cairo library (svg library) but only png/jpg/bmp....if so, i will need someone to "help" me up with cairo to build header and library files....(tried before...didn't worked well)
it will be built only for windows since i am not power user of linux and don't know much about coding on it
.elseif python:
i will need help from linux users, because i would love to make it compatible with both win and nux, so i will need to know what's best choice of UI library to use (gtk/tkinter....)
.endif

i can design it like resource editor or like carbide.ui (so you have preview of how it will look on device...)
yes, source will be public but not till it's really ready for theme cooking
another thing...i am finally happy that i have some project for MeeGo