Using custom icons

Several controls in Radzen offer the option to set an icon, e.g. items in the navigation menu.

The property itself is a string containing the icon name from the material font which is used by Radzen.

Is there an easy way to apply a custom icon? E.g. to provide an URL to a PNG or SVG file or the vector geometry of a path?

No, this isn't supported. Some components have an Image property which you can use instead. It accepts path to an image or icon.