dialcontrol.qrc Example File
customitems/dialcontrol/dialcontrol.qrc
  <RCC>
      <qresource prefix="/">
          <file>dialcontrol.qml</file>
          <file>content/background.png</file>
          <file>content/Dial.qml</file>
          <file>content/needle_shadow.png</file>
          <file>content/needle.png</file>
          <file>content/overlay.png</file>
          <file>content/quit.png</file>
          <file>content/QuitButton.qml</file>
      </qresource>
  </RCC>