First, drag the slider to whatever color you want the outlines to be, then click the stage. Next, draw a closed shape around the red dot in the middle. Finally, press space and watch as your outline is drawn!
Now the outline has 12 points. You'll notice a red dot in the center: This is to remind you where the center of the stage is. You'll notice that some shapes don't get outlined perfectly. This is because it only has 12 focal points, and makes a polygon out of that. Eventually, I will make one with several more points. However, that many sprites will lag, and there already is some lag, so I suggest using turbo mode. It won't speed up the outlining process, but it will speed up the checking process.
