I got impatient waiting for my Amiga theme, so I created one myself.
It's high-contrast and uses only a handful of colors (those from MagicWB, which was an 8 color icon set which radically improved the look of the Amiga workbench back then) -- I cheated and actually used a light grey for comments, since pure white was too bright, and MWB half-shine was too dark.
I haven't added this to the repository, since I don't expect that anyone actually wants to use it :)