Select Tools > Character Highlighting to open the Character Highlighting window. Here you will see a list of all of your Characters. Sort them by number of lines, first appearance, or if their dialogue is currently highlighted.
Click on a character name to open the Highlighting popover. Select the color of your choice and Highland will highlight that characters dialogue both in the Editor and the PDF/print.
This can be incredibly useful for table reads or when sending a script to an actor.
Pro tip: Create a quick cast list by clicking the Export button located at the top-right of the highlighting window. Highland will create a new document with a table of characters, number of lines and the page number of their first line.