Editing the navbar
In the top part of the canvas, select the Navbar component. When you click on it, notice you don’t immediately see its properties in the Properties Sidebar. Since this is a Global Component, you must enter edit mode to make changes.

Boxes are used to build layouts. They can contain
text, images, buttons, and other components. You can add, remove, and
rearrange boxes to create your desired layout.
View changes across pages
Because this is a global component, you’ll be able to see these changes propogated on other pages that use the Navbar component as well. To see this, click on the About page in the Navigation Sidebar on the left. Once it loads, you should see the Navbar with the purple Sign up button.