Stamps are sometimes show as completely black when pressing 'k', restarting the game fixes this.
Aslo the paste window stays the same size when using the arrow keys - I don't know if this is a feature but it's a lot harder to paste with it as the frame overlays pixels.
The beta lists local saves in reverse-alphabetical order instead of alphabetical order.
All stamps across all pages, yes
It was a bit hard to reproduce but I think I got it:
1) click 's' to save a stamp
2) left click twice and right click once really fast
I made a FIRW factory using RSST made by mixing GLOW and GEL and found that the FIRW has a ctype of GEL. RSST's tmp isn't set by touching elements; I tested that by touching RSST with OIL, so what's going on?