The complete theme registry. An array of theme registries, keyed by the theme name. Each registry is an associative array keyed by theme hook

The cache backend to use for the complete theme registry data. Type:

protected Registry::completeSuggestion($hook, array &$cache)

public Registry::getRuntime() Returns the

The name of the theme for which to construct the registry, if given. Type: string|null File

protected Registry::processExtension(array &$cache, $name, $type, $theme, $path)

public Registry::setThemeManager(ThemeManagerInterface $theme_manager)