Different Colors between invalid and dm permission
 

One thing that bugs me about 2nd edition is that it is difficult to tell between selections that are invalid to pick and selections that say "This is not a common selection, so the GM's permission is required to select it." It would be useful to be able to easily see the difference between the two and possibly have a different color for the uncommon selection like invalid is red and uncommon is green.

Also it would be nice to either be able to filter out invalid and uncommon items individually instead of Hide invalid items filtering out both. Or have a settings option that disables the "This is not a common selection, so the GM's permission is required to select it." warning. I have often encountered a player not being able to find an item or selection because of the hide invalid items getting rid of the uncommon item.

Funny you mention this, we've got some changes in the works to roll out soon that should address... pretty much everything here lol.

If red and green are going to be used, it would be really nice to have clearly different shades for the 1-in-20 people who had red-green colour blindness.

It's the blue that already gets used in some locations, rather than green.