+1 to almost everything. Thanks for compiling it all together.
Reaction menu definitely needs further work - fine control like "smite on crit only" will be valuable option to some, but what the menu needs are submenus - just list each reaction with some general setting, and deeper customisation in a submenu for that reaction.
I do agree that reaction need a reaction icon, but it can't list all "reactions" when listed - the system uses it for non-reactions (like smite, or bardic inspiration) and resource icon needs to show only skills that use that resource.
I somewhat disagree about redbars on the hotbar - I think anything less subtle might not draw attention to the fact that they are movable. Perhaps something less garish, bit still intuitively understandable might be implemented though. It's not something that bothers me in the slightest, though.
