Gradient / Slope color palette

[pinaman]

Any help or ideas how to select color palette for slope/gradient?

What should be ranges for each color? For example: for each 0,5% one color OR for each 1% one color OR even less precise?

Should colors be (?):

- downhill: blue shades

- flat (-ish): green shades

- uphill: yellow-red shades

I think green to yellow is more "natural" transition, than blue to yellow. That's why blue -> green -> yellow-red.

[Guilherme Silva]

https://matplotlib.org/stable/tutorials/colors/colormaps.html

This library is widely used in data science, and has a in deep description of how to use colors in the link. 

You're asking for divergent scales, as I understand, and there are some samples in the library.In a application, I would do my best for letting the user decide the parameters and would use the color codes returned by the library.

This library is in python, and I would guess someone have already ported it to C#, but I don't actually use C#, so I can't judge a good one.

Guilherme 

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