From 2adc8b6c4ef3cb1fd9ce035d2181ea5210e0d6d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alejandro=20Gonz=C3=A1lez?= <me@alegon.dev>
Date: Sun, 23 Jun 2024 01:31:15 +0200
Subject: [PATCH] Slightly tweak `fcTL` ordering comment wording

---
 src/png/mod.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/png/mod.rs b/src/png/mod.rs
index f71846e6..df695973 100644
--- a/src/png/mod.rs
+++ b/src/png/mod.rs
@@ -187,7 +187,8 @@ impl PngData {
         let mut aux_split = self.aux_chunks.split(|c| &c.name == b"IDAT");
         let aux_pre = aux_split.next().unwrap();
         // Many chunks need to be before PLTE, so write all except those that explicitly need to be after
-        // Note: fcTL does not strictly need to be after PLTE but some software may expect it
+        // Note: the PNG spec does not say that fcTL needs to be after PLTE, but some decoders expect
+        //       that (see issue #625)
         for chunk in aux_pre
             .iter()
             .filter(|c| !matches!(&c.name, b"bKGD" | b"hIST" | b"tRNS" | b"fcTL"))