Defines an interface which contain theme initialization logic. Hierarchy interface

The engine of the theme. Type: string File core/lib

public ActiveTheme::__construct(array $values)

protected Registry::postProcessExtension(array &$cache, ActiveTheme $theme)

An array of incomplete, runtime theme registries, keyed by theme name. Type: \Drupal\Core\Utility\ThemeRegistry[]

public ThemeAccessCheck::access($theme)

The stylesheets which are set to be removed by the theme. Type:

The theme initialization. Type:

An array of base theme active theme objects keyed by name. Type: static[] File

Defines an interface for classes which determine the active theme. To set the active theme, create a new service tagged with 'theme_negotiator'