Draw:
- Left Mouse -> Draw
- Right Mouse -> Erase
- Shift + Left Mouse -> Draw Line
- Ctrl + Left Mouse -> Draw Rectangle
- G + Left Mouse -> Draw Grid
- 1/2/3/4/5/6/7 -> White/R/G/B/C/Y/M
Camera:
- Scroll -> Zoom
- Shift Scroll -> Zoom + Change brush size
- Ctrl Scroll -> Change brush size
- Middle Mouse or Space -> Pan
Other:
- Z -> Undo
- R -> Reset
- Grag & drop images