to begin an irritating you're my last night dragged the pencil to the area you want to highlight all the pencil in place until they take turns green once that happens you can start reading the pencil and the area under the table the annotated this world bar at the bottom of the screen allows you to adjust the with of the annotation should you need to erase erased on and the pencil will flip hold the pencil in place until the tip turns red evening then begin dragging the pencil to erase the underlying annotation once you're happy with your annotation if they've done baton to see your score the darkness of your home last night as compared to the background skin will be stored on a scale from zero to one hundred with one hundred being very dark