GLE Library: shape.gle
List of subroutines:
! Set the secondary filling color for the shapes
! Set the color of the shadow
! Set the internal gap of a shape (for shapes containing text)
! Draw a label at the center of an imaginary line from (x1,y1) to (x2,y2)
! (x1,y1): starting point of the line
! (x2,y2): ending point of the line
! str$: label to draw
! dist: distance between label and line
! Similar to the join command, but also labels the arrow
! Draw a curly bracket from (x1,y1) to (x2,y2) with radius r
! To draw the curly bracket on the "other side" of the line, swap (x1,y1) and (x2,y2)