Use case or problem
All of us use different themes that come with a certain set of colors that its built on so it becomes quite natural to build on that for the colors we use when making notes and visual maps etc.
Currently we can customize one color at a time and when no of the default colors really match my theme I have to repeatedly change the one custom option while making my Canvas.
Proposed solution
If there was a way for the Canvas color picker to find colors specified in our themes or let us set up our set of colors to use it would make the workflow much easier.
Current workaround
Currently I have placed a note within every Canvas I have made that has all the colors I need in easy to target blocks and pick my custom color from it over and over.