Androidv1.0
likepaper
Makes an Android phone screen look like color e-ink by adjusting real display saturation instead of drawing an overlay

40
Default saturation (0 gray, 100 original)
2
UI languages (English, Korean)
0
Root required
Highlights
Real saturation, not an overlay
It lowers display saturation instead of drawing a translucent filter, so contrast stays intact
One tile, always on
A quick settings tile turns it on and off; switching automatically only while a reading app is open is optional
No root
Shell permissions are delegated through the phone's own wireless debugging
Stack
Kotlin