From a418521ced195562c00b49a7676d9396eaf8189f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sat, 22 Feb 2020 11:37:25 +0100
Subject: [PATCH] sixel: mention why we add one

---
 sixel.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sixel.c b/sixel.c
index 0656e4c1..7e547822 100644
--- a/sixel.c
+++ b/sixel.c
@@ -309,8 +309,10 @@ decgci(struct terminal *term, uint8_t c)
 
         int nparams = term->sixel.param_idx;
 
-        if (nparams > 0)
+        if (nparams > 0) {
+            /* Add one, as we use idx==0 for background color (TODO) */
             term->sixel.color_idx = min(1 + term->sixel.params[0], COLOR_COUNT - 1);
+        }
 
         if (nparams > 4) {
             unsigned format = term->sixel.params[1];