The appearance editor is where you design the menu structure of your application. The menu of your application is split up in three parts: sections, categories and menu items.
Sections are the main links in your application, at the top of the screen. Categories are then the next level, and appear in the side menu of your application, when the section they are in is selected.
Menu items are the user flows of your application, and are shown in the side menu under the category they are in. To change the appearance of your application, follow these steps: