I did paint my door and it is painted two different shades on each side.
Barn door inside or outside room.
When thinking about barn doors and how they can be used inside the house the first thing that comes to mind is the bedroom.
If your barn door is the entry to a bathroom or bedroom you ll find different privacy latching solutions available from a hook and eye closure to a latch with strike plate even a decorative deadbolt.
It will look fine i have a larger door on a barn track will take a photo from the kitchen and post it for you.
On this kind of door the exterior trim is wide enough that you will still see the frame around the door despite the overlap.