diff --git a/cockatrice/src/interface/theme_manager.cpp b/cockatrice/src/interface/theme_manager.cpp
index 19353b1e9..12952d70b 100644
--- a/cockatrice/src/interface/theme_manager.cpp
+++ b/cockatrice/src/interface/theme_manager.cpp
@@ -112,6 +112,39 @@ void ThemeManager::ensureThemeDirectoryExists()
     }
 }
 
+bool ThemeManager::isDarkMode()
+{
+    auto themeName = SettingsCache::instance().getThemeName();
+    // Explicit Dark Mode
+    if (themeName == FUSION_THEME_NAME_LIGHT || themeName.endsWith("(Light)")) {
+        return false;
+    }
+    // Explicit Light Mode
+    if (themeName == FUSION_THEME_NAME_DARK || themeName.endsWith("(Dark)")) {
+        return true;
+    }
+
+    // Auto detection on compatible Qt versions
+#if (QT_VERSION >= QT_VERSION_CHECK(6, 5, 0))
+    if (QGuiApplication::styleHints()->colorScheme() == Qt::ColorScheme::Dark &&
+        (themeName == NONE_THEME_NAME || themeName == FUSION_THEME_NAME || themeName.endsWith("(System Default)"))) {
+        return true;
+    } else {
+        return false;
+    }
+#endif
+    // Default to light mode
+    return false;
+}
+
+bool ThemeManager::isBuiltInTheme()
+{
+    const auto themeName = SettingsCache::instance().getThemeName();
+
+    return themeName == NONE_THEME_NAME || themeName == FUSION_THEME_NAME || themeName == FUSION_THEME_NAME_LIGHT ||
+           themeName == FUSION_THEME_NAME_DARK;
+}
+
 QStringMap &ThemeManager::getAvailableThemes()
 {
     QDir dir;
diff --git a/cockatrice/src/interface/theme_manager.h b/cockatrice/src/interface/theme_manager.h
index d942f0fef..416923128 100644
--- a/cockatrice/src/interface/theme_manager.h
+++ b/cockatrice/src/interface/theme_manager.h
@@ -54,6 +54,8 @@ protected:
     QBrush loadExtraBrush(QString fileName, QBrush &fallbackBrush);
 
 public:
+    bool isBuiltInTheme();
+    bool isDarkMode();
     QStringMap &getAvailableThemes();
 
     QBrush &getBgBrush(Role zone);
diff --git a/cockatrice/src/interface/widgets/general/home_widget.cpp b/cockatrice/src/interface/widgets/general/home_widget.cpp
index ea20ef6a0..8c5d76dfc 100644
--- a/cockatrice/src/interface/widgets/general/home_widget.cpp
+++ b/cockatrice/src/interface/widgets/general/home_widget.cpp
@@ -2,6 +2,7 @@
 
 #include "../../../client/settings/cache_settings.h"
 #include "../../../interface/widgets/tabs/tab_supervisor.h"
+#include "../../theme_manager.h"
 #include "../../window_main.h"
 #include "background_sources.h"
 #include "home_styled_button.h"
@@ -256,7 +257,7 @@ void HomeWidget::updateConnectButton(const ClientStatus status)
 
 QPair<QColor, QColor> HomeWidget::extractDominantColors(const QPixmap &pixmap)
 {
-    if (SettingsCache::instance().getThemeName() == "Default" &&
+    if (themeManager->isBuiltInTheme() &&
         SettingsCache::instance().getHomeTabBackgroundSource() == BackgroundSources::toId(BackgroundSources::Theme)) {
         return QPair<QColor, QColor>(QColor::fromRgb(20, 140, 60), QColor::fromRgb(120, 200, 80));
     }