The ability to add GIFs and videos to either assignment comments and/or rubric criteria would help to further detail what a students needs to do to be successful. GIFs could also be used to encourage work done so far (like a high fiving GIF) and it would be amazing to add supportive videos that might reteach a concept (like adding in a Khan academy video as a comment so they can watch it to remediate). As education becomes more digital, having the flexibility for robust feedback will not only engage the learners further but will also allow for variety of contact from faculty to student.