He looks ok to me. Some panthers will go thru ‘winter blahs’ where their color fades for a few months. One of mine also slowed down a little bit during it too. As I was debating on whether or not to make a vet appointment, his colors came back and he’s back to his usual self. Now my other panther boy has started the color fading. I know it’s said that panthers don’t brumate, but I wonder if under certain circumstances they do have something similar.