Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 5f070227058901afd7525ffe6363c93faf163ef0 Mon Sep 17 00:00:00 2001
|From: Matthias Schoth <mschoth@gmail.com>
|Date: Fri, 31 Jul 2026 23:50:51 +0200
|Subject: [PATCH] Add background image support via root window pixmap
|
|Add a background image to st by tiling a server-side pixmap set as the
|_ST_BACKGROUND_IMAGE root window property. st watches the root window
|for property changes, so re-running the stbg setter updates all running
|st instances immediately.
|
|The pixmap is shared between all instances and no composite manager is
|required. A pseudotransparency config option fixes the tile coordinates
|to the screen origin so the terminal backgrounds line up with the
|wallpaper behind the window.
|
|stbg reads a farbfeld image from a file or stdin (using -) and sets the
|property. It is not built by default; compile separately with:
|
|    cc -o stbg stbg.c -lX11
|---
| config.def.h |   6 +++
| stbg.c       | 122 ++++++++++++++++++++++++++++++++++++++++++++++++
| x.c          | 128 +++++++++++++++++++++++++++++++++++++++++++++++----
| 3 files changed, 246 insertions(+), 10 deletions(-)
| create mode 100644 stbg.c
|
|diff --git a/config.def.h b/config.def.h
|index 2cd740a..3d98c87 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/stbg.c b/stbg.c
|new file mode 100644
|index 0000000..80bc4cf
|--- /dev/null
|+++ b/stbg.c
--------------------------
(Creating file stbg.c...)
Patching file stbg.c using Plan A...
Empty context always matches.
Hunk #1 succeeded at 1.
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 d73152b..c0ec757 100644
|--- a/x.c
|+++ b/x.c
--------------------------
Patching file x.c using Plan A...
Hunk #1 succeeded at 81.
Hunk #2 succeeded at 102.
Hunk #3 succeeded at 155.
Hunk #4 succeeded at 522.
Hunk #5 succeeded at 564.
Hunk #6 succeeded at 583.
Hunk #7 succeeded at 873.
Hunk #8 succeeded at 1264.
Hunk #9 succeeded at 1576.
Hunk #10 succeeded at 2011.
Hunk #11 succeeded at 2052.
Hunk #12 succeeded at 2207.
Hmm...  Ignoring the trailing garbage.
done