font provides over 400 individual glyphs. We have chosen this approach to define the icons in the Material because it provides a number of advantages and benefits. The available Font Awesome icons are listed here: https://fontawesome.com/cheatsheet
I would recommend you to have a look at the following help article: https://docs.telerik.com/devtools/winforms/telerik-presentation-framework/glyphs
As to the images distributed in the Telerik UI for WinForms suite, you can find a set of images in the Resource folder of the Demo application. It is usually located at the following path: C:\Program Files (x86)\Progress\Telerik UI for WinForms R3 2018\Examples\QuickStart\Resources
When you install the suite together with the installation we deploy a few different kinds of images - some come with the controls, others with the examples, with themes, etc. Please refer to the "Using the Images from the Suite in Your Solutions" section in the following article giving details about which images can be reused in your applications and how this can be done: https://docs.telerik.com/devtools/winforms/installation-deployment-and-distribution/redistributing-telerik-ui-for-winforms
I hope this information helps.
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