'narrow/wide' petal: 2/3 diag pairs between inner line and outer

'short/long' petal: 3/4 steps (4/5 points) on inner line

'outside/inside' placement: petal base has 1/0 space from center

'hollow/filled': petal is points only, or filled in some way (current theory: fill the single cells at the ends of the blade and the domino(es) within, then strike off the bulky corners (i.e. the bottom/near point of the outer line and the top/far point of the inner line))

length of the orthogonal petals is 17. Diagonal petals are:

short, inner: 17 - 1.74

short, outer: 17 - 1.19

long, inner: 17 + 0.49

long, outer: 17 + 1.03