In September 2020 Visual Builder introduced the Redwood Design as a new Visual Application feature. Part of this new Redwood Design is also a quite comprehensive icon font library.
While Visual Builder provides a variety of built-in icon images through the "Icon" component the gallery of Redwood Design icons has not made it into the Visual Builder Designer UI yet.
Nevertheless it is very easy to leverage the new Redwood Design icons in your Visual Applications built with Visual Builder.
A good overview of all available Redwood Theme icons is available on the Redwood Theme Icon Gallery in our Oracle CDN.
To be able to use those icons in Visual Builder you only need to add a stylesheet link (<link rel="stylesheet" href="https://static.oracle.com/cdn/fnd/gallery/2107.2.0/images/iconfont/ojuxIconFont.min.css">) into the <head> section of your Visual Application's index.html file:
Afterwards you can use the icons through icon css classes in your html elements:
ie. to use the "new-version" Redwood Theme icon in a html span tag:
Welcome to our new Redwood Design icons in Visual Builder!