Hi Nephnurse, welcome to PetTalk.

Perhaps the kitty assembly line stopped for lunch between painting sides? Or the purchasing department forgot to get colors from the same lot number? There are lots of mysteries about that ol' kitty factory!

For what its worth, I have 2 tabbies. One is very symetrical. The other looks like his "sleeves" are rolled up, but only on one side. Either way, they are the colors of love!