ooooooh @TookieTiki, awesome clues! I had no idea one could find transparent text in sigs lol lol and that dressup definitely seems to be a major clue....the black cat in that seems to be injected with something green? maybe that kitty will have a lot of green on their body? hehe well i guess we will know more once there are more growths looking forward to the back story!!
(i think someone also had a stamp called "its broken" in their stamp collection, which could kinda point to our day 1 kitty coz there seem to be some cracks where the green stuff is oozing out from? or maybe some other outcome or not a clue at all lol lol i forgot who it was though, saw it yesterday)