--TEST--
Test max colors for a gd image.
--SKIPIF--
<?php
    if (!extension_loaded('gd')) {
        die("skip gd extension not available\n");
    }
?>
--FILE--
<?php
imagecreatefromgd(__DIR__ . '/crafted.gd2');
?>
--EXPECTF--
Warning: imagecreatefromgd(): "%scrafted.gd2" is not a valid GD file in %s on line %d