Support colour blind viewers using a perceptually uniform colourmap

[peterzahemszky]

Feature Suggestion

Is your feature request related to a problem? Please describe.
The colour coding used can be difficult to interpret for colour blind viewers. E.g. in Chrome, if I go to Inspect > Console > Rendering > Emulate vision deficiencies, I see the following for the CCF legend:

Protanopia

Deuteranopia

Describe the solution you'd like
A perceptually uniform colour map would solve these issues, as I understand. For the general scientific discussion see e.g. A Better Default Colormap for Matplotlib | SciPy 2015 | Nathaniel Smith and Stéfan van der Walt

Describe alternatives you've considered
I'm not aware of alternatives

Additional context
None

Possible Implementation

• Change the colours used in the "Emissions Breakdown" graph for the "Region" mode
• Change the colours in the static images used in the "Carbon Intensity Map" for AWS, GCP and Azure

[4upz]

@peterzahemszky Thanks for making such an insightful suggestion. We plan on making updates to the design of the dashboard and I think it is more than fair to include this as part of the changes.

I'll go ahead and add this to our backlog, but will mark it as open for contribution in case anyone wants to contribute these changes in the meantime.