• site - attributes
• page - attributes
  
• user - attributes
  

• js_and_css *
  
• body_attrs *
• edit_bar *
• page.load_gizmos *
• gizmo_area
• asset
• stylesheet
• javascript
• image
• lt
• gt
• message

The functions marked with * are mandatory. See the layout example format for more information.
Click here for functions' descriptions and example usages.