Roadmaps - feature proposal: Allow colour coding of Epic blocks on the Roadmap view

Release notes

Allowing Roadmap Epic blocks to have set colours can help teams with a large number of Epics to more easily visually group Epics together, either by team, sub-team, type of work, etc. in some arbitrary way.

Problem to solve

As a project planning, I want to be able to set different colours for Epic blocks in the Roadmap view, so I can more easily separate blocks of work being performed by different sub-teams within the company while maintaining and accurate overview of the entire teams' work.

User experience goal

The user should be able to assign a colour to an Epic ticket, similar to how colours are assigned to a Label, which will then display on the Roadmap block associated with the Epic.