Grab a component	Left Mouse Button
Rotate grabbed component	Right Mouse Button while grabbing
Zoom	Left Shift

Pick main color	Left Mouse Button on a color jar
Pick secondary color	Right Mouse Button on a color jar
Spray with main color	Left Mouse Button
Spray with secondary color	Right Mouse Button
Cycle drawing modes (free, horizontal, vertical)	X
Alter the nozzle size	Mouse Wheel

Debug: next step	F1
Debug: continue running	F2