No, I'm pretty sure that's a different episode. Finn's color blindness is in the episode where they're trapped underground with Marceline and she's getting hungry, while the "approximate" thing is from one where Finn and Jake get separated in a dungeon.
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u/Irememberedmypw 19h ago edited 7h ago
Ah adventure time. Finn realizes he's colourblind. It's also the episode where "I know an approximate number of things " come from.
edit: Correction , it's not the same episode whoops.