Locations of our sample in the G–M₂₀–A planes, including comparison populations (Section 5.1) and morphological boundaries (Section 5.3). As described in Section 4.1, G is a measure of how concentrated the light is in an image (with higher G corresponding to more concentrated light), M₂₀ is a measure of the variance of the brightest 20% of the light (with more negative M₂₀ corresponding to less variance), and A is a measure of the mirror symmetry of all the light from a galaxy (with higher A corresponding to greater asymmetry).