Many teachers have had a favorable response to their experimentation with digital feedback on students' writing. Students much preferred a simpler system of highlighting and commenting in color. After experimentation the author found that this color-coded system was more effective for them and less time-consuming for her. Of course, any system that teachers use only works if students understand not just what or how the comments were made but also the why, the reasons behind the instructional choice to respond in a particular manner. Recent comments from students indicate that they find the color-highlighting comments useful. As the comments indicate, students reported that they found the color coding useful. (Contains 1 figure.)