startshape noise

rule noise {

SQUARE { s 1.3 }
noise { x 1 r 90 s 0.71 b 1}
noise { x -1 r 90 s 0.71 b -1}

} rule noise {

SQUARE { s 1.3 }
noise { x 1 r 90 s 0.71 b -1}
noise { x -1 r 90 s 0.71 b 1}

}