Drag the 3 circles around. Press space to connect the circles in a triangle. Go to Settings (press the up arrow button) to change pen thickness and speed. I'm working on making a color section in Settings so you can set the pen color to whatever you want, but if you want to make a multicolored triangle, you can press the up and down arrows on the keyboard to change the color of the pen as it's drawing. To get out of the instructions and the settings, just click on the backdrop behind them.
