Default implementation of the module installer. It registers the module in config, installs its own configuration, installs the schema, updates

public InfoParser::parse($filename) Parses

public ModuleHandlerInterface::moduleExists($module)

public ModuleHandlerInterface::isLoaded()

public ModuleHandler::getName($module) Gets

public ThemeInstaller::uninstall(array $theme_list)

Type:

Origin directory weight: Site-wide directory. File core/lib/Drupal/Core/Extension/ExtensionDiscovery

protected ExtensionDiscovery::filterByProfileDirectories(array

Manages theme installation/uninstallation. Hierarchy class \Drupal\Core\Extension\