startshape WHOLE
rule WHOLE {
QUAD { x -0.5 y -0.5 } QUAD { x 0.5 y -0.5 } QUAD { x 0.5 y 0.5 } QUAD { x -0.5 y 0.5 }
}
rule QUAD {
FILL { }
} rule QUAD 5 {
WHOLE { size 0.45 r 2 }
} rule QUAD 0.5 {
// nothing
}
rule FILL {
SQUARE { size 0.8 }
}