Advice Animals […] are a type of image macro series featuring animals […] that are accompanied by captioned text to represent a character trait or an archetype that fits the role of a “stock character”. While many Advice Animals use a color wheel background, some use unedited versions of the original photo.
what was up with the multicolor haxagonal-ish backgrounds?
It was the style at the time.
It’s the hallmark of the “Advice Animals” category of memes.
It’s just how they were. That’s like asking “why are they all screenshots underneath plain text on a white background?” re memes now.
well easy answer. cause its easy to make, and the white background ensure test readability that may be lost if overlayed on the meme itself.