Colour blind mode

[andyjennings314]

It has been observed that the colours for mission pods might not be viewable for users with colour blindness. We therefore need

• An option to enable colour blindness mode
• Which uses colours acceptable for colour blindness

[andyjennings314]

On reflection, the use of icons for mission state means that the user is not stuck relying on colour to infer meaning.

Additionally, my testing suggests that the colours are distinct enough for Anomalous Trichromacy users, and most dichromatic conditions.