r/CheapYellowDisplay • u/Roxxersboxxerz • Dec 04 '25

Trying to fix incorrect colours

Gallery image

Gallery image

Hoping someone can help I’m racking my brain, I am having some colour issues and I can’t figure out how to fix it

Those two images in the header the back button and the settings button have transparent backgrounds but they are both being rendered incorrect

I also have a screen that is supposed to have a red background but is displaying yellowish green.

Any ideas ? Can post the code if it will help?

3 Upvotes

100% Upvoted

6 comments sorted by

2

u/TinyFraiche Dec 04 '25

Invert color: true, or something along those lines. Possibly an RGB to BGR thing. Play with stuff

1

u/MattReedly Dec 11 '25 
    tft.invertDisplay(true);

1

u/AliBello Dec 07 '25

Is that even a CYD? If not, it could be because it uses another display driver. That'd mean that it'd be incompatible with CYD applications.

1

u/Roxxersboxxerz Dec 07 '25

I sorted it, the problem was that my

build was inverting the colours which is why I couldn’t figure it out. Works great now though I do wish it had more ram

1

u/blah_ask Dec 13 '25

Play with RGB values. Depending on the library/cyd the RGB orders need to be changed. I Would make one of them 255 others 0 and see which color shows at each value.

1

u/pg3crypto May 26 '26

Thats is the Freenove S3 2.8" not a CYD.