This would make it much quicker and easier to get to a section we want to review with a student. By making a spot for us to click on the section (say part 1 data vs part 2 calculations or discussion questions) we can quickly go to that portion of the lab report to view responses. If this was also put into the "definition" window, we can quickly scan to see if there are autograding issues, which unfortunately happen a lot.
Additionally, making more contrast with the sections, the information thats presenting, would make reading through those windows much easier for those of us with reading/processing differences...