From 0cabeee67e566cbd9f7f428bf169c82692716636 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Wed, 7 Apr 2021 08:10:56 +0200
Subject: [PATCH] doc: foot-ctlseq: mention that we support transparency in OSC
 11

---
 doc/foot-ctlseqs.7.scd | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/foot-ctlseqs.7.scd b/doc/foot-ctlseqs.7.scd
index 3c32442e..210e3269 100644
--- a/doc/foot-ctlseqs.7.scd
+++ b/doc/foot-ctlseqs.7.scd
@@ -583,7 +583,9 @@ All _OSC_ sequences begin with *\\E]*, sometimes abbreviated _OSC_.
 |  \\E] 11 ; _spec_ \\E\\ 
 :  xterm
 :  Change the default background color to _spec_, a color in
-   *XParseColor* format.
+   XParseColor format. Foot implements URxvt's transparency extension;
+   e.g. _spec_=*[75]#ff00ff* or _spec_=*rgba:ff/00/ff/bf* (pink with
+   75% alpha).
 |  \\E] 12 ; _spec_ \\E\\ 
 :  xterm
 :  Change cursor color to _spec_, a color in *XParseColor* format.