To help organize your tasklist, you can highlight, or mark, the tasklist row for any item assigned to you. You can choose a red, blue, green, or purple highlight. You can also highlight items assigned to another person in red.
An item can only be highlighted with one color at a time. If you reassign an item to another person, only the red highlight choice will still display. Any other color will disappear.
To add a color, click the Actions + button next to the item you want to mark. Then select one of the Mark as color choices. Once you have marked an item with a color, the Actions + menu changes to allow you to “unmark” that color. The following image shows a row marked purple with the menu expanded.