The grey keys have been up for quite some time - and have included a pretty comprehensive collection of different modifier keys from the HHKB - but this is the first that I've seen some of these colorways, which are (in my opinion) odd colorways. Do you know any more info on the keys themselves? I know that they're dyed, and are PBT keys, so I'm assuming they're dyed keys from authentic blank HHKB/PFU keysets, but I'd like to try and get a better idea of the defect probability/quality of the keys themselves.