Non-scoring rubrics were introduced to Canvas on July 14, 2018. When a non-scoring rubric is used in the SpeedGrader for grading (assuming there are only three values to choose from...such as Full Marks, Partial Marks, No Marks), there are only three corresponding color options: green, orange, and red. An example of this is shown in the Non-Scoring Rubrics section of the Release Notes. However, what if there are more than three possible ratings in a rubric row? The only colors available are green, orange, and red (described by Pat Fellows ... thanks @pfellows !) In my own testing, depending on how the cells were added to a criterion row, you may get different results for colors when grading via the SpeedGrader.
If there are greater than three values for a given row in a rubric, I would like to see more color options available. Or, maybe allow us to pick a color palette that we could use throughout the rubric...keeping in mind that some rows may have three values, but some rows may have four or five values...all within the same rubric...all dependent on the type of assignment being graded.