OLD VIDEO: This video was made before the "More" tab was redesigned from a single page to a pull-out menu, but all of the capabilities you access from "More" are the same as they were before. Visit the ForeFlight Mobile Pilot's Guide.
ForeFlight's data-driven Aeronautical Maps allow you to customize which map elements you show or hide. You can also choose between Light, Dark, and Classic map themes and toggle terrain features on and off. With the Aeronautical layer selected you can add or remove airspace, view high or low airways, and adjust label text size. Try mixing and matching the new map settings to find the combination that works best for you.