(Note: I tried to search, but came up empty) Does anyone know if there is a setting, or an app, to turn the display red? I do a lot of science-type stuff (astronomy), and also photograph at night. I used a red-tinted flashlight, so as to not ruin my night vision. I would love to be able to use my phone while shooting, or doing astronomy stuff out in the dark, and not have bright white glow from the phone. Any help would be appreciated.