Show active stage in left nav bar

MatterControlLib/SetupWizard/StagedSetupWizard.cs

@@ -42,6 +42,7 @@ namespace MatterHackers.MatterControl
 		private DialogPage activePage;
 		private GuiWidget rightPanel;
 		private bool footerHeightAcquired = false;
+		private WizardStageRow activeStageButton;
 
 		public StagedSetupWizard(IEnumerable<ISetupWizard> stages)
 		{
@@ -76,10 +77,19 @@ namespace MatterHackers.MatterControl
 
 				stageWidget.Click += (s, e) =>
 				{
+					if (activeStageButton != null)
+					{
+						activeStageButton.Active = false;
+					}
+
 					stage.Reset();
 					stage.MoveNext();
 
 					activeStage = stage;
+
+					activeStageButton = stageWidget;
+					activeStageButton.Active = true;
+
 					this.ChangeToPage(stage.Current);
 				};
 

MatterControlLib/SetupWizard/WizardStageRow.cs

@@ -43,9 +43,10 @@ namespace MatterHackers.MatterControl
 		private ImageBuffer hoverIcon;
 		private double iconXOffset;
 		private double iconYOffset;
+		private bool _active;
 
 		public WizardStageRow(string text, string helpText, ISetupWizard stage, ThemeConfig theme)
-			: base (text, helpText, theme)
+			: base(text, helpText, theme)
 		{
 			this.stage = stage;
 			this.Cursor = Cursors.Hand;
@@ -54,6 +55,21 @@ namespace MatterHackers.MatterControl
 			hoverIcon = AggContext.StaticData.LoadIcon("expand.png", 16, 16, theme.InvertIcons);
 		}
 
+		public bool Active
+		{
+			get => _active;
+			set
+			{
+				_active = value;
+			}
+		}
+
+		public override Color BackgroundColor
+		{
+			get => (_active) ? theme.AccentMimimalOverlay : base.BackgroundColor;
+			set => base.BackgroundColor = value;
+		}
+
 		public override void OnBoundsChanged(EventArgs e)
 		{
 			if (detailIcon != null)
@@ -70,10 +86,13 @@ namespace MatterHackers.MatterControl
 		{
 			base.OnDraw(graphics2D);
 
-			graphics2D.Render(
-				mouseInBounds ? hoverIcon : detailIcon,
-				iconXOffset, 
-				iconYOffset);
+			if (!this.Active)
+			{
+				graphics2D.Render(
+					mouseInBounds ? hoverIcon : detailIcon,
+					iconXOffset,
+					iconYOffset);
+			}
 		}
 	}
 }