gtk:icon-paintable-is-symbolic (object)

object -- a gtk:icon-paintable object
symbolic -- true if the icon is symbolic, false otherwise

The accessor for the is-symbolic slot of the gtk:icon-paintable class checks if the icon is symbolic or not. This currently uses only the file name and not the file contents for determining this. This behaviour may change in the future. The is-symbolic property is deprecated since 4.20. Do not use this function in newly written code.