From fd09519bbd4e7ea89b898c7496e7e06980ee9672 Mon Sep 17 00:00:00 2001
From: Axel Spoerl <axel.spoerl@qt.io>
Date: Thu, 19 Oct 2023 15:19:12 +0200
Subject: QGtk3Theme: define light, midlight, mid, dark and shadow colors
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Define color groups used for shading and in order to render specific
inactive texts, e.g. menu item text.

Found-by: Piotr Wierciński <piotr.wiercinski@qt.io>
Pick-to: 6.6 6.5
Change-Id: I736f5aff1ff5379ce3f78b53e547b0b5f552779f
Reviewed-by: Santhosh Kumar <santhosh.kumar.selvaraj@qt.io>
Reviewed-by: Piotr Wierciński <piotr.wiercinski@qt.io>

diff --git a/src/plugins/platformthemes/gtk3/qgtk3storage.cpp b/src/plugins/platformthemes/gtk3/qgtk3storage.cpp
index 22cfabb843..90c0282651 100644
--- a/src/plugins/platformthemes/gtk3/qgtk3storage.cpp
+++ b/src/plugins/platformthemes/gtk3/qgtk3storage.cpp
@@ -578,6 +578,18 @@ void QGtk3Storage::createMapping()
         MODIFY(Normal, Text, -100, -100, -100);
         ADD(All, PlaceholderText, Dark);
 
+        // Light, midlight, dark, mid, shadow colors
+        LIGHTER(Normal, Button, 125);
+        ADD(All, Light)
+        LIGHTER(Normal, Button, 113);
+        ADD(All, Midlight)
+        LIGHTER(Normal, Button, 113);
+        ADD(All, Mid)
+        LIGHTER(Normal, Button, 87);
+        ADD(All, Dark)
+        LIGHTER(Normal, Button, 5);
+        ADD(All, Shadow)
+
         SAVE(SystemPalette);
         CLEAR;
     }