Arvados

It just occurred to me that we could take the name of a cluster and use that to generate a hex color code, ensuring that the same clusters would always be the same color, regardless of any other factors. That's probably overkill, though.

Lisa Knox wrote in #note-13:

It just occurred to me that we could take the name of a cluster and use that to generate a hex color code, ensuring that the same clusters would always be the same color, regardless of any other factors. That's probably overkill, though.

So last I checked there is some code which chooses the color based on the cluster name with some really simplistic hashing algorithm, but it only has a set of 5 colors that it chooses from, and it doesn't check if the same color is assigned twice.

So if we can do something that makes the color choice somewhat stable, that would be nice, but just not assigning the same color twice is more important.

Also if you generate the colors on the fly you still need to check for adequate contrast/differentiation with the text and other colors which is why just having a pre-approved set seems easier.

15798-cluster-label-colors @ 74edc1db8f9420ac7c4ed3b6c18e55d44a1dcbcd

developer-run-tests-services-workbench2: #1312

• ✅ All agreed upon points are implemented / addressed.
• - Anything not implemented (discovered or discussed during work) has a follow-up story.
• ✅ Code is tested and passing, both automated and manual, what manual testing was done is described
  Tested with 3 clusters
• ✅ New or changed UX/UX and has gotten feedback from stakeholders.
• Documentation has been updated.
  na/
• ✅ Behaves appropriately at the intended scale (describe intended scale).
  Intended scale is one user with any number of clusters (the cluster colors will repeat after the 12th cluster)
• ✅ Considered backwards and forwards compatibility issues between client and server.
  No changes
• ✅ Follows our coding standards and GUI style guidelines.

• I used the colors above with a slight adjustment to the mustard yellow color (top right) to make the white text show up better.
• I opted to assign colors to clusters based on an alphabetized list of sessions generated during the auth cycle, with the best-looking (in my opinion) colors first.
• There is an edge case that happens when a user manually logs into a new session after the initial auth cycle has completed. In this case, the background color will default to a dark grey and will then be updated the next time the user is authenticated.

LGTM!