private void InstallGUI(BuildTargetGroup targetGroup)
 {
     if (this.m_InstallsRequired)
     {
         EditorGUILayout.Space();
         GUILayout.Label("XR Support Installers", EditorStyles.boldLabel, new GUILayoutOption[0]);
         EditorGUI.indentLevel++;
         if (!this.m_VuforiaInstalled)
         {
             if (EditorGUILayout.LinkLabel("Vuforia Augmented Reality", new GUILayoutOption[0]))
             {
                 string playbackEngineDownloadURL = BuildPlayerWindow.GetPlaybackEngineDownloadURL("Vuforia-AR");
                 Application.OpenURL(playbackEngineDownloadURL);
             }
         }
         EditorGUI.indentLevel--;
         EditorGUILayout.Space();
     }
 }