Hi Shazbot so for v2 you'll mostly need to edit image files for controls like pushbuttons and just some background colors are in moi.css

Here are a couple of previous discussion threads on that which may be of use:
http://moi3d.com/forum/index.php?webtag=MOI&msg=1521.1
http://moi3d.com/forum/index.php?webtag=MOI&msg=1173.1
http://moi3d.com/forum/index.php?webtag=MOI&msg=844.2

- Michael