After learning the answers, this gay test is only valid for certain model-years. I stopped watching cartoons just a bit before that show aired, but I'm also gay af.
What if I wasn't gay this morning and thought it would have to be Marceline from context, but looked nothing like her?
I knew who they were from the moment I saw the thumbnail. Not a good gay test, though, as I'm mostly just a cartoon fan.
Btw, it's a slow burn but Adventure Time gets really good near the end, with those two actually canonized as in a relationship by the end. Their special epilogue episode (which I think was on HBO) was also super cute.
(Later seasons are probably Rebecca Sugars influence, she was on Adventure Time staff until she started Steven Universe, but often ended up working on later stuff with them too, including songs in their latest HBO stuff)
Also, trying to get hold of the uncensored version is a recommendation. The one available on streaming services has had most of the more adult episodes removed which is why it sometimes feels like nothing makes sense.
I totally got bubble gum but couldn't get marceline without checking comments. Maybe I'm just half gay
It's an outfit from a particular episode where she sings a song that's one of the first overt gay hints
Edit: https://youtu.be/h28xpNvW9Yw it's a bop
Left: Technoblade Right: No idea. Could be a patriotic Czech beachgoer like somebody else suggested.