I like the "Toxic" idea, and a Toxic set will fit my green Gasmask keycap well. Nice theme, but looking at those modifiers I can not feel the scare of toxic yet, just think of a 'chemical' theme or something like that... maybe just me. Charcoal is fine to me, though I still prefer Black for this set, cause Black and Green is a badass couple.
I would like to have some Biohazard Esc & Modifier keys in Green on Charcoal (Black) & Charcoal (Black) on Green to match with this set. If they couldn't be included in this set, we should have a separate run for them.
/Btw, the VAT green we are going to use for this set is the color of those 420 smiley keycaps...
and it is very close to the Lime green of Topre keycaps in real...