Been reading the internet a lot due to new place renovation, is there such a paint which will turn dark or darker at nite, while stay light color day time ? Obviously this is useful for a front projection home theater ... am I dreaming up things ?
A more realistic case maybe a lighting product which you can keep light colored with lights, but when you turn off the lights, the color turn dark

A more realistic case maybe a lighting product which you can keep light colored with lights, but when you turn off the lights, the color turn dark















