Hi,

I see in the help for the “rainbow” command that there is an option for web-fetched palettes – any chance for integrating support for ColorBrewer ( http://colorbrewer2.org/#)? 

It has different very well-designed palettes for sequential (e.g. color by residue) divergent (e.g. color by charge or hydrophobicity) and qualitative (e.g. color by chain) data, and they are designed to be colorblind-safe etc. 

It’s intended for cartography, but I have manually used their palettes for structural biology with pleasing results – the full set of palettes can be downloaded as JSON or in an excel spreadsheet.

Cheers

Oli