fix(ui): save resolution based font in setting

src/Menu.cpp

@@ -169,6 +169,7 @@ NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(
 	AutoHideFeatureList,
 	SkipConstraintWarning,
 	RequireShiftToDock,
+	UseResolutionFont,
 	Theme,
 	SelectedThemePreset)
 

src/Menu.h

@@ -411,11 +411,13 @@ class Menu
 		bool AutoHideFeatureList = false;                                                   // Auto-hide left feature list panel, show on hover
 		bool SkipConstraintWarning = false;                                                 // Skip popup when a setting change creates new constraints
 		bool RequireShiftToDock = true;                                                     // Require holding Shift to dock windows
+		bool UseResolutionFont = true;                                                      // When true, runtime font size scales with screen resolution; when persisted to theme files, FontSize is zeroed for backward compatibility
 		ThemeSettings Theme;
 		std::string SelectedThemePreset = "";  // Currently selected theme preset (empty = custom/user theme)
 	};
-	const ThemeSettings& GetTheme() const { return settings.Theme; }                // Provide read-only access to the Theme.
-	Settings& GetSettings() { return settings; }                                    // Provide access to settings for other components
+	const ThemeSettings& GetTheme() const { return settings.Theme; }  // Provide read-only access to the Theme.
+	Settings& GetSettings() { return settings; }                      // Provide access to settings for other components
+	const Settings& GetSettings() const { return settings; }
 	winrt::com_ptr<IDXGIAdapter3> GetDXGIAdapter3() const { return dxgiAdapter3; }  // Provide access to dxgiAdapter3
 	ThemeSettings::FontRoleSettings& GetFontRoleSettings(FontRole role) { return settings.Theme.FontRoles[static_cast<size_t>(role)]; }
 	const ThemeSettings::FontRoleSettings& GetFontRoleSettings(FontRole role) const { return settings.Theme.FontRoles[static_cast<size_t>(role)]; }

src/Menu/SettingsTabRenderer.cpp

@@ -856,11 +856,10 @@ void SettingsTabRenderer::RenderFontsTab()
 
 		SeparatorTextWithFont("Font", Menu::FontRole::Subheading);
 
-		bool useAutoFont = (themeSettings.FontSize <= 0.0f);
+		bool& useAutoFont = menuInstance->GetSettings().UseResolutionFont;
 		if (ImGui::Checkbox("Use resolution-based font size", &useAutoFont)) {
-			if (useAutoFont) {
-				themeSettings.FontSize = 0.0f;
-			} else {
+			if (!useAutoFont) {
+				// Seed the fixed-size slider with the current effective size so it doesn't jump
 				float effective = ThemeManager::ResolveFontSize(*menuInstance);
 				themeSettings.FontSize = std::clamp(effective, ThemeManager::Constants::MIN_FONT_SIZE, ThemeManager::Constants::MAX_FONT_SIZE);
 			}

src/Menu/ThemeManager.cpp

@@ -791,15 +791,16 @@ bool ThemeManager::ValidateThemeData(const json& themeData) const
 
 float ThemeManager::ResolveFontSize(const Menu& menu)
 {
-	const auto& themeSettings = menu.GetTheme();
-	float configured = themeSettings.FontSize;
+	const auto& settings = menu.GetSettings();
 
-	// If user configured a positive size, use it (clamped)
-	if (std::round(configured) > 0) {
-		return std::clamp(configured, Constants::MIN_FONT_SIZE, Constants::MAX_FONT_SIZE);
+	// When resolution-based font is disabled, use the theme's fixed size directly
+	if (!settings.UseResolutionFont) {
+		float configured = settings.Theme.FontSize;
+		if (std::round(configured) > 0)
+			return std::clamp(configured, Constants::MIN_FONT_SIZE, Constants::MAX_FONT_SIZE);
 	}
 
-	// Otherwise, compute dynamic default based on current screen resolution
+	// Compute dynamic size from screen resolution
 	float dynamicSize;
 	if (globals::game::isVR) {
 		// VR: use overlay height