Quoted from Whysnow:so many great ideas!
thanks for sharing!
Is there a special black out paint that people are using?
here you go lol $22 for 150 mL
https://www.fastcompany.com/90300113/move-over-vantablack-you-can-now-buy-the-worlds-blackest-black-paint
I would think any interior paint would work.