Add highlighting to button on mouseover

source/LibRender2/Primitives/Button.cs

@@ -8,6 +8,8 @@ public class Button : GLControl
 	{
 		/// <summary>The text displayed on the button</summary>
 		public string Text;
+		/// <summary>The highlight color of the button</summary>
+		public Color128 HighlightColor;
 		/// <summary>The color of the text on the button</summary>
 		public Color128 TextColor;
 		/// <summary>The font for the button</summary>
@@ -20,7 +22,19 @@ public Button(BaseRenderer renderer) : base(renderer)
 		public override void Draw()
 		{
 			Renderer.Rectangle.Draw(Texture, Location, Size, BackgroundColor);
+			if (CurrentlySelected)
+			{
+				Renderer.Rectangle.Draw(Texture, Location + 4, Size - 2, HighlightColor);
+			}
 			Renderer.OpenGlString.Draw(Font, Text, Location, TextAlignment.CenterLeft, TextColor);
 		}
+
+		public override void MouseMove(int x, int y)
+		{
+			if (x > Location.X && x < Location.X + Size.X && y > Location.Y && y < Location.Y + Size.Y)
+			{
+				CurrentlySelected = true;
+			}
+		}
 	}
 }

source/LibRender2/Primitives/GLControl.cs

@@ -17,6 +17,8 @@ public abstract class GLControl
 		public Vector2 Location;
 		/// <summary>The stored size for the control</summary>
 		public Vector2 Size;
+		/// <summary>Whether the control is currently selected by the mouse</summary>
+		public bool CurrentlySelected;
 
 		protected GLControl(BaseRenderer renderer)
 		{

source/LibRender2/Primitives/Textbox.cs

@@ -33,8 +33,6 @@ public string Text
 		public readonly int Border;
 		/// <summary>The top line to be renderered</summary>
 		private int topLine;
-		/// <summary>Whether the textbox is currently selected by the mouse</summary>
-		public bool CurrentlySelected;
 		/// <summary>Whether the textbox can scroll</summary>
 		public bool CanScroll;
 		/// <summary>Used for internal size calculations</summary>