From 2f4b6cfa8d8262ba356361b4bb17f2534d831831 Mon Sep 17 00:00:00 2001
From: Saghm Rossi <git@saghm.com>
Date: Thu, 18 Jun 2026 19:37:39 -0400
Subject: utilize font size settings

---
 src/src/moapplication.cpp       | 10 +++++++++-
 src/src/settingsdialogtheme.cpp | 15 +++++++++++++++
 src/src/settingsdialogtheme.h   |  1 +
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/src/moapplication.cpp b/src/src/moapplication.cpp
index d7262b7..4b1ee86 100644
--- a/src/src/moapplication.cpp
+++ b/src/src/moapplication.cpp
@@ -764,8 +764,13 @@ bool MOApplication::setStyleFile(const QString& styleName)
 
     const QString fontFamily =
         m_settings != nullptr ? m_settings->interface().fontFamily() : QString();
+    const int fontSize =
+        m_settings != nullptr ? m_settings->interface().qssFontSize() : 0;
     QFont appFont = QApplication::font();
     appFont.setFamily(!fontFamily.isEmpty() ? fontFamily : m_defaultFontFamily);
+    if (fontSize > 0) {
+      appFont.setPixelSize(fontSize);
+    }
     QApplication::setFont(appFont);
   }
   return true;
@@ -1058,11 +1063,14 @@ void MOApplication::updateStyle(const QString& fileName)
     }
   }
 
-  // Apply user's font family override (or fall back to bundled DejaVu Sans)
+  // Apply user's font family/size override (or fall back to bundled DejaVu Sans)
   const QString fontFamily =
       m_settings != nullptr ? m_settings->interface().fontFamily() : QString();
   QFont appFont = QApplication::font();
   appFont.setFamily(!fontFamily.isEmpty() ? fontFamily : m_defaultFontFamily);
+  if (qssFontSize > 0) {
+    appFont.setPixelSize(qssFontSize);
+  }
   QApplication::setFont(appFont);
 }
 
diff --git a/src/src/settingsdialogtheme.cpp b/src/src/settingsdialogtheme.cpp
index 2665298..951e997 100644
--- a/src/src/settingsdialogtheme.cpp
+++ b/src/src/settingsdialogtheme.cpp
@@ -8,6 +8,7 @@
 #include "fluorinepaths.h"
 
 #include <QFontDatabase>
+#include <QFontInfo>
 
 #include <questionboxmemory.h>
 #include <utility.h>
@@ -20,9 +21,14 @@ ThemeSettingsTab::ThemeSettingsTab(Settings& s, SettingsDialog& d) : SettingsTab
   addStyles();
   selectStyle();
   selectQssFontSize();
+  updateDefaultFontSizeHint();
   populateFontFamilies();
   selectFontFamily();
 
+  QObject::connect(ui->styleBox, &QComboBox::currentIndexChanged, [&] {
+    updateDefaultFontSizeHint();
+  });
+
   // colors
   ui->colorTable->load(s);
 
@@ -122,6 +128,15 @@ void ThemeSettingsTab::selectQssFontSize()
   ui->qssFontSizeSpinBox->setValue(settings().interface().qssFontSize());
 }
 
+void ThemeSettingsTab::updateDefaultFontSizeHint()
+{
+  int px = QFontInfo(QApplication::font()).pixelSize();
+  if (px > 0) {
+    ui->qssFontSizeSpinBox->setSpecialValueText(
+        QStringLiteral("Default (%1 px)").arg(px));
+  }
+}
+
 void ThemeSettingsTab::populateFontFamilies()
 {
   ui->fontFamilyCombo->addItem("Default (DejaVu Sans)", QString());
diff --git a/src/src/settingsdialogtheme.h b/src/src/settingsdialogtheme.h
index 538ea36..037c6a1 100644
--- a/src/src/settingsdialogtheme.h
+++ b/src/src/settingsdialogtheme.h
@@ -19,6 +19,7 @@ private:
   void selectQssFontSize();
   void populateFontFamilies();
   void selectFontFamily();
+  void updateDefaultFontSizeHint();
   static void onExploreStyles();
 };
 
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