Assuming the cat ears for Scratch Members are here to stay, I'd like it if you could change the color of the cat ears to better match your icon. Eg, the default orange ears might look weird on a green icon, so being able to have green ears instead would be good.
Additionally, perhaps there could be other types of “ears”, maybe based on the other Scratch mascots? Like headphones for Pico and Tera's head lump thingies for Tera. Would be good for more customization of one's profile!