Familiarize yourself with the icons that you can use in your application to make the UI cleaner and more intuitive.While the icon set in your application can include custom icons, Pega also provides a large catalog of out-of-the-box icons, which are ready-to-use without any development effort.
In the header of Dev Studio, click the name of the application, and then click Skin.
On the skin tab, click.
In the Skin preview window, on the menu on the left side of the screen, click Icons.
Review the icons in the skin.