>>105665781>Bugs changing from purple to grey, Porky slightly redesigned to look more like his usual classic look,Bugs was also slightly redesigned (apart from color) to look like his usual classic look
Compare Bugs' proportions in season 1 to some of his earliest cartoons, such as Hare-um Scare-um and Elmer's Candid Camera. They're very similar; bigger feet, bigger head, bigger pupils in the eyes; notably smaller body.
Porky, too, with his different shaped ears in season 1 wasn't just different, he was different in a way that suggested his look in the late 1930s, right after he stopped being fat.
Season 2 brought the characters more in line with the 1990s designs.