It may not be Halloween, but why should that stop you from dressing up your cat in a TRON costume? It shouldn’t. If you have a dream, live it. Who cares if your cat never talks to you again. Some huge TRON fan is living the dream and has dressed their cat up in a light-up costume and posted a picture of it online.
The cat seems to like it since it can’t stop checking itself out in the mirror. Maybe the mirror is a gateway into the grid.