text: 'use strict';
  
  goog.provide('Blockly.PhysicsToggle');
  
  Blockly.PhysicsToggle.makeToggleField = function(opt_onchange) {
    return new Blockly.FieldDropdownImage([
                  ['2D', "2D"],
                  ['3D', "3D"]
              ], "/toggle_", 16, 16, "png", true, false, opt_onchange);
  };