Some things to try: 1. If you want the "thickness" of the space between the outside circle and the inside "circle" to be wider or narrower, try adjusting the value of the variable "DegreesToSkip" in the InitializeVariables custom block. (hint: smaller values result in a narrower space, and larger numbers result in a wider space. Positive or Negative values work). 2. If you'd like to alter the number of lines drawn after the circle perimeter is rendered, try adjusting the "DegreesToIncrement" variable in the InitializeVariables custom block. (hint: smaller numbers result in more lines, and larger number result in fewer lines. Use only positive values for the best results.) 3. The size of the outer circle can be adjusted by changing the value of the "Radius" variable in the InitializeVariables custom block. (Some interesting things begin to happen when the values used are greater than half the height of the screen).
I remember making things like this when I was a kid. Back then, there were no personal computers, so I did it by drawing a circle on a piece of cardboard. (This circle is represented in my project by the circle that is drawn first). Then I would thread colored yarn through holes that I poked around the circumference of the circle. (This step is represented in my project by the series of straight lines that are drawn after the first circle is rendered).
