Add the generic strings to WP_Upgrader::$strings.
WP_Upgrader::fs_connect
Connect to the filesystem.
WP_Upgrader::download_package
Download a package.
WP_Upgrader::unpack_package
Unpack a compressed package file.
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WP_Upgrader::install_package
Install a package.
WP_Upgrader::run
Run an upgrade/installation.
WP_Upgrader::maintenance_mode
Toggle maintenance mode for the site.
Theme_Upgrader::theme_info
Get the WP_Theme object for a theme.
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Theme_Upgrader::delete_old_theme
Delete the old theme during an upgrade.
Theme_Installer_Skin::before
Action to perform before installing a theme.
Theme_Installer_Skin::after
Action to perform following a single theme install.
Theme_Upgrader_Skin::__construct
Constructor.
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Theme_Upgrader_Skin::after
Action to perform following a single theme update.
Theme_Upgrader::upgrade_strings
Initialize the upgrade strings.
Theme_Upgrader::install_strings
Initialize the installation strings.