From 33ba094ceb071c581f97b71126b3772a9ab5c97d Mon Sep 17 00:00:00 2001
From: relikd <info@relikd.de>
Date: Mon, 11 Oct 2021 23:53:03 +0200
Subject: [PATCH] fix determine_image_size bytes-string

---
 icnsutil/RawData.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/icnsutil/RawData.py b/icnsutil/RawData.py
index 44de8cf..bc4aa61 100644
--- a/icnsutil/RawData.py
+++ b/icnsutil/RawData.py
@@ -41,7 +41,7 @@ def determine_image_size(data: bytes, ext: Optional[str] = None) \
         total = PackBytes.get_size(data[4:])  # without ARGB header
         return IcnsType.match_maxsize(total, 'argb').size
     elif ext == 'rgb':
-        if data[:4] == '\x00\x00\x00\x00':
+        if data[:4] == b'\x00\x00\x00\x00':
             data = data[4:]  # without it32 header
         return IcnsType.match_maxsize(PackBytes.get_size(data), 'rgb').size
     elif ext == 'jp2':