subprojects/gst-examples/playback/player/gtk/resources/gresources.xml

<? xml version="1.0" encoding="UTF-8" ?>
<gresources>
  <gresource prefix="/ui">
    <file>toolbar.ui</file>
    <file>media_info_dialog.ui</file>
  </gresource>
  <gresource prefix="/css">
    <file>toolbar.css</file>
  </gresource>
</gresources>