We have a 1000sf barn that we are turning into an ADU. All raw wood that has no beautiful features and the ceiling has water stains so it’s all going to get painted. Only three existing windows in the space: one north, one south and one west. The east side is dark without natural light so we originally planned to paint everything white, but after reading advice about white paint and how it will not solve that problem we decided to ask our Houzz community to comment and hopefully illuminate our approach.