This program draws an outline box around any pen drawn. Press b to draw a box around the pen you have drawn. Press n to clear the screen and start a new drawing. Use the 'Pen Thickness' variable slider to change the thickness of the drawing pen and the box outline. (You can't change this once you start drawing, but you can after the box is drawn around it.) The 'Box Overlapping Pen?' variable controls whether the box is drawn touching the inside edge (1) or outside edge (0) of the pen drawing.
Please give credit to @2EmRo6 (me) if using this. If it looks like the box isn't around the pen, it's because there is pen underneath the edge of the box. To fix it, change the 'Box Overlapping Pen?' variable to 0. 15.7.2020: Started 16.7.2020: Shared #art #tutorials