Indicates whether the screen is in a particular admin
Base image editor class from which implementations extend
WordPress Image Editor Class for Image Manipulation through Imagick PHP Module
WordPress Image Editor Class for Image Manipulation through GD
WordPress autoloader for SimplePie.
Switches the internal blog ID.
Disables the Link Manager on upgrade if, at the time of upgrade, no links exist in the DB.
Retrieve list of WordPress theme features (aka theme tags).
Show a username form for the favorites page
Render the site charset setting.
Display attachment submit form fields.
Displays non-editable attachment metadata in the publish meta box.