Validate user capabilities whether the theme supports the setting.

bool False if theme doesn't support the setting or user can't change setting, otherwise true.

File: wp-includes/class-wp-customize-setting.php. View all references

final public function check_capabilities() {
	if ( $this->capability && ! current_user_can( $this->capability ) ) {
		return false;
	}

	if ( $this->theme_supports && ! current_theme_supports( ... (array) $this->theme_supports ) ) {
		return false;
	}

	return true;
}