Here's a theme I'm working on for our upcoming Workbench distribution, which people have dubbed "Modern Workbench" but I don't know what it'll be called. Probably Modern Workbench if we can't think of anything better.
There will be a choice of glow effects for your icons. Along with the classic dull yellow glow, there's this new "radioactive" glow, complete with green themed window borders.
I've designed everything to be compatible with any Amiga running Kickstart 3.0/3.1, although VisualPrefs may not run on 68000 so we'll need to include a simpler window-border hack that will still work with Birdie.