Tool Controller

Tool Controller is additional controller for Painting Tools, as you know, the Azimuth and Altitude of a Painting Tools can be controlled by the Apple Pencil easily, but the Rotation of it can not be controlled by the Apple Pencil now.

So we introduced the Tool Controller to control the Rotation of Painting Tools.

Controller

Drag on the metallic ball of it, you will find the snapshot of the painting tools(Brushes and Knifes) will be rotated.

Of course, the stroke lines of painting tools(Brushes and Knifes) will be different if this value is different.