Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 4ce17bbc340ca1f93f9be686f4a796797f9ca6d5 Mon Sep 17 00:00:00 2001
|From: Matthias Schoth <mschoth@gmail.com>
|Date: Sat, 16 Apr 2022 14:21:22 +0200
|Subject: [PATCH] Implements background image and pseudo transparancy support.
|
|---
| config.def.h |   8 +++
| x.c          | 141 +++++++++++++++++++++++++++++++++++++++++++++++----
| 2 files changed, 139 insertions(+), 10 deletions(-)
|
|diff --git a/config.def.h b/config.def.h
|index 91ab8ca..ad19e3d 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 8.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/x.c b/x.c
|index 8a16faa..fedef53 100644
|--- a/x.c
|+++ b/x.c
--------------------------
Patching file x.c using Plan A...
Hunk #1 succeeded at 14.
Hunk #2 succeeded at 82.
Hunk #3 succeeded at 103.
Hunk #4 succeeded at 154.
Hunk #5 succeeded at 510.
Hunk #6 succeeded at 546.
Hunk #7 succeeded at 565.
Hunk #8 succeeded at 850.
Hunk #9 succeeded at 1238.
Hunk #10 succeeded at 1572.
Hunk #11 succeeded at 1998.
Hunk #12 succeeded at 2192.
Hmm...  Ignoring the trailing garbage.
done