From 03ac5eb042295f744b4a44c544601b9df47d454e Mon Sep 17 00:00:00 2001
From: dmester <daniel@mester.se>
Date: Sat, 2 Nov 2019 12:38:56 +0100
Subject: [PATCH] Bug fix: getImageData using the internal PNG encoder
 generated "Undefined offset" warnings and produced artifacts when the icon
 contained more than 256 colors (#4).

---
 src/Canvas/Png/PngPalette.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Canvas/Png/PngPalette.php b/src/Canvas/Png/PngPalette.php
index ab1aed8..37887b6 100644
--- a/src/Canvas/Png/PngPalette.php
+++ b/src/Canvas/Png/PngPalette.php
@@ -46,7 +46,7 @@ function __construct(& $colorRanges)
                     $lookup[$value] = $colorsCount++;
                     $colors[] = $value;
                     
-                    if ($colorsCount == 256) {
+                    if ($colorsCount > 256) {
                         break;
                     }
                 }