 unglowBlock() {
        if (Blockly.selected) {
          workspace.glowBlock(Blockly.selected.id, false);
        }
      }

      function glowStack() {
        if (Blockly.selected) {
          workspace.glowStack(Blockly.selected.id, true);
        }
      }

      function unglowStack() {
        if (Blockly.selected) {
          workspace.glowStack(Blockly.selected.id, false);
        }
      }

      function sprinkles(n) {
        var prototypes = [];
        var toolbox = workspace.options.languag