temporary changes for phetsims/calculus-grapher#324

Author: pixelzoom

js/initialize-globals.js

@@ -65,6 +65,22 @@
     // Schema that describes query parameters for PhET common code.
     // These query parameters are available via global phet.chipper.queryParameters.
 
+    // Temporary: icon for the Preferences button, see https://github.com/phetsims/calculus-grapher/issues/324
+    icon: {
+      type: 'string',
+      defaultValue: 'userCog',
+      validValues: [ 'userCog', 'cog', 'wrench' ],
+      public: true
+    },
+
+    // Temporary: initial tab in the Preferences dialog, see https://github.com/phetsims/calculus-grapher/issues/324
+    tab: {
+      type: 'string',
+      defaultValue: 'overview',
+      validValues: [ 'overview', 'sim' ],
+      public: true
+    },
+
     /**
      * In environments where users should not be able to navigate hyperlinks away from the simulation, clients can use
      * ?allowLinks=false.  In this case, links are displayed and not clickable. This query parameter is public facing.