Absolutely lovely. The pedant in me wants to point out this isn't exactly a heatmap; there's no heat spreading blobbiness. It's more of a spatial histogram. Not

Absolutely lovely. The pedant in me wants to point out this isn't exactly a heatmap; there's no heat spreading blobbiness. It's more of a spatial histogram. Nothing wrong with that! The localized normalization of values using a CDF is very clever.