Function: Add callbacks for background image display.

Function: Remove custom background support.

Function: Retrieve theme data from parsed theme file.

Function: Alias of update_post_cache().

Function: Will clean the page in the cache.

Function: Retrieve nonce action “Are you sure” message.

Function: Display “sticky” CSS class, if a post is sticky.

Function: Retrieve post ancestors.

Function: Load an image from a string, if PHP supports it.