From fa68ae9fe99e29ae27dd00d6b00d65fdde4ec6c8 Mon Sep 17 00:00:00 2001
From: Nicolas Werner <nicolas.werner@hotmail.de>
Date: Sun, 28 Mar 2021 20:56:08 +0200
Subject: [PATCH] Tweak rainbow slightly

---
 src/Utils.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Utils.cpp b/src/Utils.cpp
index 50ebbeb5..bf9a8449 100644
--- a/src/Utils.cpp
+++ b/src/Utils.cpp
@@ -530,7 +530,10 @@ utils::markdownToHtml(const QString &text, bool rainbowify)
                                 }
 
                                 // get correct color for char index
-                                auto color = QColor::fromHsvF((charIdx - 1.0) / textLen, 1.0, 1.0);
+                                // Use colors as described here:
+                                // https://shark.comfsm.fm/~dleeling/cis/hsl_rainbow.html
+                                auto color =
+                                  QColor::fromHslF((charIdx - 1.0) / textLen * (5. / 6.), 1.0, 0.5);
                                 // format color for HTML
                                 auto colorString = color.name(QColor::NameFormat::HexRgb);
                                 // create HTML element for current char