Krita
Input
- Stylus Button: Drag Canvas
- Shift Stylus Button: Rotate Canvas
- 5: reset rotation to north
- Control Stylus Button: Zoom Canvas
- Control Tap: Select Color
- Back Stylus Button: Pen Wheel
- F: Fill Tool
- B: Brush Tool
- Shift Tip Drag: Brush Size
- Transform -> Control Rotate: Rotate in 3D Space
- Control M: Non-Destructive Mirror
- Shift Backspace: Fill Layer (or selected area) With Color