蓝图
形状
Which base shapes to use for this blueprint: Circles, Ellipses or Squares.
How many rounds are generated, as if the pen draws the same stroke several times (i.e. how many times the process is repeated).
Random Radius, Center
Backbone Length, Backbone
For the Squares shapes. The first adds some extra length to each edge of the generated squares (also affected by the second parameter). The second adds some randomness to the squares.