Carview!

Retrieves the template root of the previewed theme.

Return

string Theme root.

public function get_template_root() {
	return get_raw_theme_root( $this->get_template(), true );
}

Uses	Description
WP_Customize_Manager::get_template()`wp-includes/class-wp-customize-manager.php`	Retrieves the template name of the previewed theme.
get_raw_theme_root()`wp-includes/theme.php`	Gets the raw theme root relative to the content directory with no filters applied.

Version	Description
3.4.0	Introduced.