I'm an Instructional Designer who supports faculty using Canvas. In SpeedGrader, when an instructor enters a general comment but doesn't submit it, then navigates to a different student, the comment's text is auto-saved as a draft. When the instructor returns to the first student's submission, this draft status is indicated by a tiny red asterisk to the left of the comment. This is confusing, since it doesn't say "Draft" anywhere. This is also an accessibility issue, since users with color blindness or users with any level of visual impairment may not be able to see the tiny red asterisk. I propose replacing the asterisk with the bold word "DRAFT," which is clearer, more accessible, and more inclusive.
It would also be helpful to clarify that the grey "Submit" button is specific to the draft comment and works differently than the blue Submit button, which submits both comments and grades.
Screenshot of the asterisk to the left of a draft comment: