I recently installed f.lux at my Windows machine and discovered this awesome feature:

A new “darkroom” mode, which inverts colors and gets very red

I’ve been looking for software like this without any luck. Does it even exist or is this a very unique feature only used in f.lux so far?

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  • Can you maybe upload sample before/after images so that we get a better idea? IIRC you don't have enough reputation yet to insert images, but just put them on some image hosting site and edit the links into your post. Someone will come along and actually include them.
    – user416
    May 22, 2015 at 14:59
  • We will need much more information to give good recommendations here – asking for "a tool like X" is never giving enough details, even if linked. You should always list your requirements explicitly. Please see How to ask for an alternative to some software and the questions linked to it for details. Currently it's even unclear if you're looking for an image editor, screen filter, or screen saver.
    – Izzy
    May 22, 2015 at 15:07
  • @jordy19 Are you saying that you found software that does this (f.lux), but you want other software that does this? If so, why? May 22, 2015 at 19:50
  • The darkroom mode in F.lux only allows you to use a red filter, I was wondering if there is software around that allows you to use different colored filters.
    – Jordy19
    May 22, 2015 at 19:51
  • Have you tried adjusting the colour temperature in f.lux?
    – Huey
    Jul 4, 2015 at 9:25


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