Hey Guys,
I am looking for an Alarm clock app that will will color overlay my screen for specified intervals.

For example, I want to be cautious about what I do with my system from 9Am-10Am, I found its easy if I can get an app that will overlay my screen in transparent RED color, and GREEN color afterwards.

Does any anyone know about such an app? It would really make my day, if you would.

Thank you very much <3