Request #2 :
In Crowded Backgammon and Backgammon Race, some checkers on the bar are them from the beginning and don't need to be played. Other checkers on the bar are sent there by the opponent and must be played before any other checker can be played. But the graphical board doesn't show any difference between those two sorts of checkers on the bar.
When it concerns one's own checkers, try and error can tell. But when it concerns the opponent's checkers, it can be painful to have to go down the game score in order to find out which is which.
Checkers which are on the bar since the beginning of the game should show differently, e.g. on a different background, or elsewhere on the screen.