nonamethanks said:
Do we actually need these to be umbrella tags? sonic chao and shadow chao are pretty different from the rest.
Personally I like looking at Chao by alignment, but I also just really like Chao. However they do all have shared characteristics among the alignments - Neutral Chao have orbs above their head, while Dark Chao have spiked orbs and Hero Chao have halos, to start.
Sonic Chao and Shadow Chao technically aren't official Chao variants in the way the other character Chao are! They're just the natural forms of Neutral/Dark Chao with certain attributes. Some of the Chao in those tags are actually closer to the default, such as the little aqua Sonic Chao in post #5848478. However those specific Chao are very popularly depicted in artwork for obvious reasons.