public GraphicsTab()
        {
            IoCManager.InjectDependencies(this);
            RobustXamlLoader.Load(this);

            VSyncCheckBox.OnToggled      += OnCheckBoxToggled;
            FullscreenCheckBox.OnToggled += OnCheckBoxToggled;

            LightingPresetOption.AddItem(Loc.GetString("ui-options-lighting-very-low"));
            LightingPresetOption.AddItem(Loc.GetString("ui-options-lighting-low"));
            LightingPresetOption.AddItem(Loc.GetString("ui-options-lighting-medium"));
            LightingPresetOption.AddItem(Loc.GetString("ui-options-lighting-high"));
            LightingPresetOption.OnItemSelected += OnLightingQualityChanged;

            UIScaleOption.AddItem(Loc.GetString("ui-options-scale-auto",
                                                ("scale", UserInterfaceManager.DefaultUIScale)));
            UIScaleOption.AddItem(Loc.GetString("ui-options-scale-75"));
            UIScaleOption.AddItem(Loc.GetString("ui-options-scale-100"));
            UIScaleOption.AddItem(Loc.GetString("ui-options-scale-125"));
            UIScaleOption.AddItem(Loc.GetString("ui-options-scale-150"));
            UIScaleOption.AddItem(Loc.GetString("ui-options-scale-175"));
            UIScaleOption.AddItem(Loc.GetString("ui-options-scale-200"));
            UIScaleOption.OnItemSelected += OnUIScaleChanged;

            foreach (var gear in _prototypeManager.EnumeratePrototypes <HudThemePrototype>())
            {
                HudThemeOption.AddItem(Loc.GetString(gear.Name));
            }
            HudThemeOption.OnItemSelected += OnHudThemeChanged;

            ViewportStretchCheckBox.OnToggled += _ =>
            {
                UpdateViewportScale();
                UpdateApplyButton();
            };

            ViewportScaleSlider.OnValueChanged += _ =>
            {
                UpdateApplyButton();
                UpdateViewportScale();
            };

            ShowHeldItemCheckBox.OnToggled   += OnCheckBoxToggled;
            IntegerScalingCheckBox.OnToggled += OnCheckBoxToggled;
            ViewportLowResCheckBox.OnToggled += OnCheckBoxToggled;
            ApplyButton.OnPressed            += OnApplyButtonPressed;
            VSyncCheckBox.Pressed             = _cfg.GetCVar(CVars.DisplayVSync);
            FullscreenCheckBox.Pressed        = ConfigIsFullscreen;
            LightingPresetOption.SelectId(GetConfigLightingQuality());
            UIScaleOption.SelectId(GetConfigUIScalePreset(ConfigUIScale));
            HudThemeOption.SelectId(_cfg.GetCVar(CCVars.HudTheme));
            ViewportScaleSlider.Value       = _cfg.GetCVar(CCVars.ViewportFixedScaleFactor);
            ViewportStretchCheckBox.Pressed = _cfg.GetCVar(CCVars.ViewportStretch);
            IntegerScalingCheckBox.Pressed  = _cfg.GetCVar(CCVars.ViewportSnapToleranceMargin) != 0;
            ViewportLowResCheckBox.Pressed  = !_cfg.GetCVar(CCVars.ViewportScaleRender);
            ShowHeldItemCheckBox.Pressed    = _cfg.GetCVar(CCVars.HudHeldItemShow);

            UpdateViewportScale();
            UpdateApplyButton();
        }
 private void OnUIScaleChanged(OptionButton.ItemSelectedEventArgs args)
 {
     UIScaleOption.SelectId(args.Id);
     UpdateApplyButton();
 }