I’ve hardly been able to pull myself away from SKB since I got it on my iPad last week. However, there is really only one thing that perplexes me about it. There is a tool at the bottom of the screen, when the menus are present on the screen. It looks like a translucent disk with diagonal lines across it. What is it? What does it do? What is it called?
It’s a palm rest. It is designed so you can lay your palm upon it without marking up your sketch. If you need to move your palm to another area, you can drag it, and rest your palm upon it.
It is a fairly needed feature, seeing how not many people are used to drawing with their wrists hovering in the air.
You can disable it by clicking the little “x” in the semi-circle at the bottom center of your screen (where your black arrow points at).