String
      path: /blockly/reference/ios/../Extensions/String.html
    - title: Toolbox
      path: /blockly/reference/ios/../Classes/Toolbox.html
    - title: – Category
      path: /blockly/reference/ios/../Classes/Toolbox/Category.html
    - title: ToolboxCategoryListViewController
      path: /blockly/reference/ios/../Classes/ToolboxCategoryListViewController.html
    - title: – Orientation
      path: /blockly/reference/ios/../Classes/ToolboxCategoryListViewController.html#/s:7Blockly33ToolboxCate