Just to clarify real quick the ones with traditional flags are straight, not gay.

Yellow, King, Ballista and Primal are all straight allies. Blue and Hazard are bigender, Blue uses both male pronouns and female titles while Haz is canonically a they (plural). Green, Red, and Vic are pan.

Purple is kinda trans, she was born female and presented as male most of her life but as she became comfortable with her friends and King she started presenting as female again. Idk if there's a flag for that specific situation (tbh there probably is) but the identity dysphoria she went through is similar (from what I've heard) to what many members of the trans community experience so she's under the trans umbrella.

Orchid and Agent are bi. Gold is ganderfluid, mostly because I can't decide if I want him to be male or female so she gets to be both. Orange and Chosen are aromantic. Vic, Agent and Mitsi are poly.

And finally Dark made his own special flag because he identifies as a threat.

Some other hc that are present; many winged sticks like to dye their wings for events such as pride parades. Spirits often have powers related to how they lived, in Orchid's case she can make flowers and is using their pigments to dye her and Gold's wings because Goldy saw Purple doing it and thought it would be fun. Chosen doesn't fully understand the point of pride month but is supportive of his little brother none the less. Dark also doesn't give a shit, all he cares about is chaos, he doesn't have time for relationships, but if he were to chill out and try to find someone (who isn't one of his brothers) he'd realize he's gay. Navy is also gay but is in total denial. The vast majority of animations are either bi or pan with tons of others also not conforming to a singular gender. Very few animations are created with a gender so many orient however they want. Born sticks usually lean one way or the other but even they tend to fluctuate throughout their lives, so long as their parents allow them to.