GrapheneOS
Feature request: total red filter / color lens
Just started using GrapheneOS and was disappointed at not being able to completely turn off green and blue pixels. I have seen friends do this on their devices. It is critical for visual astronomy to avoid green and blue light as it wrecks night vision.
It seems stock Android has some "color lens" accessibility option which does so. (I never used stock Android so i can't confirm this.)
You can set the filter much higher on GrapheneOS than the stock OS, and you shouldn't need more than the maximum. Did you try setting it to the maximum value?
You can set the filter much higher on GrapheneOS than the stock OS, and you shouldn't need more than the maximum. Did you try setting it to the maximum value?
Yes, and am seeing non-red light nonetheless. (i.e. can see multiple colors on the screen)
I have the same issue - via accessibility all I find is red-green weakness and monochrome presets... Nowhere a simple filter. Would be imporant for visual astronomy.
@dosutter The Night Light feature in Display settings provides support for turning down blue light. GrapheneOS extends the range to where it can fully turn off blue pixels.
We don't plan to deviate further from what the stock OS provides on this. We already greatly extended the Night Light range to where blue can be disabled. Fully disabling green too is out-of-scope for that feature. You can install a third party accessibility service if you want a very niche feature. It will be much slower than the hardware accelerated OS feature but it's a super niche use case and that seems fine.
@dosutter The Night Light feature in Display settings provides support for turning down blue light. GrapheneOS extends the range to where it can fully turn off blue pixels.
Oh I feel stupid now, I didn't know you could change the intensity of it when you clicked on this feature (and then you get a submenu). I thought using the toggle switch there was all that I could do. Thanks for getting back to me, and apologies.