Mine did this once to me last month while watching a youtube video but it hasn’t happened since, I joked about it being google’s top secret night vision mode but I’m thinking its some sort of software bug related to graphics rendering, maybe something funky going on with its GPU.
I also restarted my pixel 7 and it went back to normal so who knows what really causes it.
This is amazing, its like Takeshi’s Castle but skateboarding!