Just for the heck of it I made one of my A600 with ACA630, kickswitch (2.05 and 3.1) and several other hardware upgrades into a mix of AmigaOS having WB1.3, WB2.1, OS3.1 and OS3.9 installed on seperat partitions and a custom Startup-Seq to highlight best compatible OS depending on CPU/KS in use. Still haven't installed my Kickswitch supporting 3 ROM's as I have to get my custom 1.3 ROM with A600 scsi.dev Image splitted and burnt to two ROMs for the KS switch so currently WB1.3 runs under KS2 and have included a temporary softkick option for KS1.3.
Anyway to make it more divert I chuse to run WB2.1 in 4 colors, OS3.1 in 8 colors MagicWB and OS3.9 with GlowIcons. It uses the standard Icons for the respective system partitions and for the shared Work and Games partitions I use custom Icons based on MagicWB but palette edited so the colors don't get all screwed up in 4 colors (meening light gray and brown have to go), I then converted 3.9 glowicons to newicons and added that tooltype to the edited icons. With WB1.3's inverted palette there's nothing much to do about the look, it will get messed up but the result under WB2.1 is a 4 color MagicWB look, almost normal MagicWB look under OS3.1 and GlowIcons look under OS3.9.
