I started drawing in photoshop I want to do graphics like as Ketchapp I have a question to make superb graphics in my game what size i need? because I do not know what's best for buildbox, and what sizes work, I want the game to work on ios and android. My game is portrait It's good to make the image size 1136x640 pixeles? I need more or less? How many pixels do I need and how many bit? it's good to be 8 bit or 32 bit? which is perfect resolution? Thank you!