Support of colour blind mode

[David Sauren]

A client is asking for support of colour blind options. As an example they have mentioned Trello which adds consistent patterns to the coloured labels. Alternatively, we could support colour palettes by user, where one can be selected that supports this user group best https://davidmathlogic.com/colorblind/#%23D81B60-%231E88E5-%23FFC107-%23004D40

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[Ada Trajer]

Thank you for submitting this improvement proposal, it will be reviewed during our next roadmap discussion.