Invert web page colours in Opera (2 Solutions!!)

I need some help, the black and white colours are inverted, Why does this happend? It only happends when I'm on opera GX : r/OperaGX

Messed up colors due to Force Dark Pages

Messed up colors due to Force Dark Pages

Why are some image's colors inverted? : r/OperaGX

Why are some emotes using inverted colors on Oprea gx : r/Twitch

Chrome Inverted colours

Opera GX: some elements color is inverted in twitch.com : r/operabrowser

how to fix the post party clip failed on pc｜TikTok Search

My Roblox Page colors are inverted, not the game but just the page and - Microsoft Community

Does anyone know how to fix this bug? My browser, opera gx btw if thats important, wouldnt open a few weeks ago, so i reset my laptop, and when i opened PT