Core class used to implement site icon functionality.

Registers actions and filters.

Adds additional sizes to be made when creating the site icon images.

Creates an attachment ‘object’.

Deletes the Site Icon when the image file is deleted.

Adds custom image sizes when meta data for an image is requested, that happens to be used as Site Icon.

Inserts an attachment.

Adds Site Icon sizes to the array of image sizes on demand.

Gets the name of the default primary column.

Generates and displays row action links.