Checks if we have a valid duotone preset.

Description

Valid presets are defined in the $global_styles_presets array.

Parameters

$duotone_attrstringrequired

The duotone attribute from a block.

Return

Source

private static function is_preset( $duotone_attr ) {
	$slug      = self::get_slug_from_attribute( $duotone_attr );
	$filter_id = self::get_filter_id( $slug );

	return array_key_exists( $filter_id, self::get_all_global_styles_presets() );
}

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