i literally only recognize ford's

Maybe Mabel's is demigirl?

I did some research, and the red, orange, yellow, white, and black flag appears to be lithsexual. A sexuality where an individual experiences romantic and sexual attraction, but may not want others to experience feelings for them. It sounds mostly like it's a label for having sexual attraction, without wanting to experience physical intamacy with the person

I think the top left persons flag is either demi girl or bigender

Maybe the top right is supposed to be closeted aromantic? It's got the gray, green, black, and white if you count the colors on the sweatshirt, so maybe it's supposed to be something like that? Idk the character at all though, so I may be way off base

Dipper's is Demiromantic

I was about to comment about Dipper's but Eden has already done that XD

Yep, it is, good catch, y'all

oh wow thank y'all XD
My search history's still being tracked so it'd be a bad idea to look that up

Yeah that makes sense