Controls:

- Click and drag to draw (alternately, using touch works).
- Right-click and hold to draw with a white line instead of the currently selected color.
- Scroll the mousewheel to cycle through the colors available.
- Escape closes the window.
- P will take a screenshot.
- O will open the folder where screenshots are saved.
- B will toggle between black and white and color modes.
- C will clear the canvas.