Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 0750c0b8c91579ec871c70c8990527bebc86a56e Mon Sep 17 00:00:00 2001
|From: Ashish Kumar Yadav <ashishkumar.yadav@students.iiserpune.ac.in>
|Date: Sat, 31 Jul 2021 22:21:11 +0530
|Subject: [PATCH] Add settings for selection-colors
|
|This patch adds the two color-settings *selectionfg* and *selectionbg* to
|config.def.h. Those define the fore- and background colors which are used when
|text on the screen is selected with the mouse. This removes the default
|behaviour which would simply reverse the colors.
|
|Additionally, a third setting *ingnoreselfg* exists. If true then the setting
|*selectionfg* is ignored and the original foreground-colors of each cell are
|not changed during selection. Basically only the background-color would change.
|This might be more visually appealing to some folks.
|---
| config.def.h | 11 ++++++++---
| st.h         |  1 +
| x.c          | 30 +++++++++++++-----------------
| 3 files changed, 22 insertions(+), 20 deletions(-)
|
|diff --git a/config.def.h b/config.def.h
|index 6f05dce..3679af8 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 119.
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/st.h b/st.h
|index 3d351b6..e1a28c3 100644
|--- a/st.h
|+++ b/st.h
--------------------------
Patching file st.h using Plan A...
Hunk #1 succeeded at 33.
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 210f184..7a6c70e 100644
|--- a/x.c
|+++ b/x.c
--------------------------
Patching file x.c using Plan A...
Hunk #1 succeeded at 1425.
Hunk #2 succeeded at 1497.
Hunk #3 succeeded at 1510.
Hunk #4 succeeded at 1608.
Hmm...  Ignoring the trailing garbage.
done