+F Walk forward, creating a segment
+A-Z Replacement rule
+A(0.33) Probability factor 0.33 for rule A
+= Rule assignment
++ Turn left
+- Turn right
+& Pitch down
+^ Pitch up
+\ Roll left
+/ Roll right
+| Turn around 180 degrees
+[ Save state to stack
+] Load state from stack
+{ Create a planar surface
+} Close a planar surface
+f One vertex in a planar surface, specified CCW
+! Decrement segment diameter
+' Increment current index to color table
+, Decrement current index to color table