Instructors can now use the built-in annotation toolbar in Assignments to provide contextual feedback with highlighting, free hand drawing, shapes, and associated commenting. This allows instructors to complete all their evaluation and feedback work directly in Assignments, without the need to use any external tools or applications. Annotations remain editable until the feedback is published by the instructor. If instructors want to add additional feedback after publishing, they can update the annotations and re-publish them.
Here is a video created by D2L introducing this tool.