I have been a little bit concerned over whether I should fill up all my assets with the respective universal sizes:
https://i.stack.imgur.com/0V0Tn.png
I have around 20-30 images so it'd be a concern if I have to add three png's per asset. Is this required to submit my application? My app has run fine without the other sizes? (x2, x3)
All my images are 1000px big. I have tested my app on an iPad pro and it looks just as good