Pixels can be stuck on a certain color or display wrong colors because a subpixel is deficient.
By stimulating the screen with a flash about 20 minutes, the pixel can be repaired.
the preview shows BW, RGB and CMYK flash option but when you install this app it only shows you the BW flash option, you have to pay for the rest of the option. that's all.
2019-02-08 11:20
remo spadaccini
Got the app, put the flash rate to 1ms and now there is a really annoying small part where I tried to fix a pixel and now all colours flash faintly there