Transparency fix for thumbnails

inc/functions.php

@@ -351,9 +351,13 @@
 		$return['height'] = $tn_height;
 		
 		$tmp = imagecreatetruecolor($tn_width, $tn_height);
+		imagecolortransparent($tmp, imagecolorallocatealpha($tmp, 0, 0, 0, 0));
+		imagealphablending($tmp, false);
+		imagesavealpha($tmp, true);
+		
 		imagecopyresampled($tmp, $src, 0, 0, 0, 0, $tn_width, $tn_height, $width, $height);
 		
-		imagepng($tmp, $destination_pic, 100);
+		imagepng($tmp, $destination_pic, 4);
 		imagedestroy($src);
 		imagedestroy($tmp);