From c9b90655bd85d7134654fbe0535ce14293ed850b Mon Sep 17 00:00:00 2001
From: BearOso <bearoso@gmail.com>
Date: Mon, 13 May 2024 13:58:31 -0500
Subject: [PATCH] Qt/Windows: Match system color scheme.

Use windowsvista style for light, dark fusion scheme for dark.
---
 qt/src/main.cpp | 60 ++++++++++++++++++++++++++++---------------------
 1 file changed, 34 insertions(+), 26 deletions(-)

diff --git a/qt/src/main.cpp b/qt/src/main.cpp
index b3b68139..58d459c9 100644
--- a/qt/src/main.cpp
+++ b/qt/src/main.cpp
@@ -6,6 +6,7 @@
 #include <clocale>
 #include <qnamespace.h>
 #include <QStyle>
+#include <QStyleHints>
 
 #ifndef _WIN32
 #include <csignal>
@@ -28,35 +29,42 @@ int main(int argc, char *argv[])
 
     if (emu.qtapp->platformName() == "windows")
     {
-        emu.qtapp->setStyle("fusion");
+        if (emu.qtapp->styleHints()->colorScheme() == Qt::ColorScheme::Dark)
+        {
+            emu.qtapp->setStyle("fusion");
 
-        const QColor darkGray(53, 53, 53);
-        const QColor gray(128, 128, 128);
-        const QColor black(25, 25, 25);
-        const QColor blue(198, 238, 255);
-        const QColor blue2(0, 88, 208);
+            const QColor darkGray(53, 53, 53);
+            const QColor gray(128, 128, 128);
+            const QColor black(25, 25, 25);
+            const QColor blue(198, 238, 255);
+            const QColor blue2(0, 88, 208);
 
-        QPalette darkPalette;
-        darkPalette.setColor(QPalette::Window, darkGray);
-        darkPalette.setColor(QPalette::WindowText, Qt::white);
-        darkPalette.setColor(QPalette::Base, black);
-        darkPalette.setColor(QPalette::AlternateBase, darkGray);
-        darkPalette.setColor(QPalette::ToolTipBase, blue2);
-        darkPalette.setColor(QPalette::ToolTipText, Qt::white);
-        darkPalette.setColor(QPalette::Text, Qt::white);
-        darkPalette.setColor(QPalette::Button, darkGray);
-        darkPalette.setColor(QPalette::ButtonText, Qt::white);
-        darkPalette.setColor(QPalette::Link, blue);
-        darkPalette.setColor(QPalette::Highlight, blue2);
-        darkPalette.setColor(QPalette::HighlightedText, Qt::white);
-        darkPalette.setColor(QPalette::PlaceholderText, QColor(Qt::white).darker());
+            QPalette darkPalette;
+            darkPalette.setColor(QPalette::Window, darkGray);
+            darkPalette.setColor(QPalette::WindowText, Qt::white);
+            darkPalette.setColor(QPalette::Base, black);
+            darkPalette.setColor(QPalette::AlternateBase, darkGray);
+            darkPalette.setColor(QPalette::ToolTipBase, blue2);
+            darkPalette.setColor(QPalette::ToolTipText, Qt::white);
+            darkPalette.setColor(QPalette::Text, Qt::white);
+            darkPalette.setColor(QPalette::Button, darkGray);
+            darkPalette.setColor(QPalette::ButtonText, Qt::white);
+            darkPalette.setColor(QPalette::Link, blue);
+            darkPalette.setColor(QPalette::Highlight, blue2);
+            darkPalette.setColor(QPalette::HighlightedText, Qt::white);
+            darkPalette.setColor(QPalette::PlaceholderText, QColor(Qt::white).darker());
 
-        darkPalette.setColor(QPalette::Active, QPalette::Button, darkGray);
-        darkPalette.setColor(QPalette::Disabled, QPalette::ButtonText, gray);
-        darkPalette.setColor(QPalette::Disabled, QPalette::WindowText, gray);
-        darkPalette.setColor(QPalette::Disabled, QPalette::Text, gray);
-        darkPalette.setColor(QPalette::Disabled, QPalette::Light, darkGray);
-        emu.qtapp->setPalette(darkPalette);
+            darkPalette.setColor(QPalette::Active, QPalette::Button, darkGray);
+            darkPalette.setColor(QPalette::Disabled, QPalette::ButtonText, gray);
+            darkPalette.setColor(QPalette::Disabled, QPalette::WindowText, gray);
+            darkPalette.setColor(QPalette::Disabled, QPalette::Text, gray);
+            darkPalette.setColor(QPalette::Disabled, QPalette::Light, darkGray);
+            emu.qtapp->setPalette(darkPalette);
+        }
+        else
+        {
+            emu.qtapp->setStyle("windowsvista");
+        }
     }
 
 #ifndef _WIN32