Multiple non-conflicting mods

[Marshall]

I see what you mean now, Renegade. Looks like the program is auto-reducing to 256 colours. >>:-(
Attached to this post is my own reduction using error diffusion instead. Would that be acceptable?
tab3a = error diffusion
tab3b = error diffusion, reduced colour bleeding

Currently we have
Windows Grey 1 - original design
Windows Grey 2 [default] - DCoder pointed out that Grey 1's tabs, etc were ugly.
Metal Bord Workshop - the green one I showed earlier
Renegade Glass 'N' Metal

I'm inclined to make Renegade's the default, and may even remove Windows Grey 1 altogether.