Glare from windows or reflected from light walls/furniture can easily exceed that, so any dark scenes (or dark editor theme) are entirely illegible. No amount o

Glare from windows or reflected from light walls/furniture can easily exceed that, so any dark scenes (or dark editor theme) are entirely illegible. No amount of screen brightness can make blacks darker under glare, which will show up as the brightest white the screen can produce. Darkening the environment is the only option for displaying any dark colours and it happens to make high screen brightness unnecessary.