The Crayon tool simulates drawing with a wax crayon.
To use this tool...
Once you have selected the colours you will be drawing with, Click on the Crayon button and point the cursor where you want to begin drawing. Press and hold the left mouse button to draw with the foreground colour; press and hold the right mouse button to draw with the background colour. Draw with the crayon by moving the mouse. You can change the Crayon's size by double-clicking on the Crayon button.