RdBu and BrBg from matplotlib?

[stevengj]

Matplotlib seems like it has finer-granulated versions of these, and they are nice to have as diverging colormaps for signed data.

I like the discussion in Matplotlib's manual here: https://matplotlib.org/stable/tutorials/colors/colormaps.html — it would be nice to have something similar in the documentation, and in particular to highlight which colormaps are perceptually uniform and other nice properties.

[cormullion]

Hi! Yes, in earlier releases I used to include figures with a bit more information:

but keeping the size of the swatch docs down became a consideration... And only a proportion of the colorschemes are for plotting purposes... It would be good to add some more information like the one you referenced.

Perhaps we could have a function perceptual_uniformity(cs::ColorScheme) that returns some useful information - like a score for suitability?

[stevengj]

Maybe just a section of the manual listing a subset of color schemes that are most suitable for visualization, like in Matplotlib's docs?