add stars to the thumbnail view

Program.cs

@@ -518,7 +518,10 @@ public static class Util {
   }
 
   public static Texture RenderStar(float radius, bool filled) {
-    IPath path = new Star(x: radius, y: radius, prongs: 5, innerRadii: radius * 0.4f, outerRadii: radius, angle: Util.PI);
+    IPath path = new Star(x: radius, y: radius, prongs: 5, innerRadii: radius * 0.45f, outerRadii: radius, angle: Util.PI);
+    // We add a little bit to the width & height because the reported
+    // path.Bounds are often a little tighter than they should be & a couple
+    // pixels end up obviously missing...
     Image<Rgba32> image = MakeImage(path.Bounds.Width + 2, path.Bounds.Height + 2);
     IBrush brush = Brushes.Solid(Color.White);
     IPen pen = Pens.Solid(Color.White, 1.5f);
@@ -538,7 +541,8 @@ public class Game : GameWindow {
   private static Texture TEXTURE_WHITE = new(new Image<Rgba32>(1, 1, new Rgba32(255, 255, 255)));
   private static Texture TEXTURE_BLACK = new(new Image<Rgba32>(1, 1, new Rgba32(0, 0, 0)));
   private static Texture STAR_FILLED = Util.RenderStar(20, true);
-  private static Texture STAR_EMPTY= Util.RenderStar(20, false);
+  private static Texture STAR_EMPTY = Util.RenderStar(20, false);
+  private static Texture STAR_SMALL = Util.RenderStar(6, true);
 
   UiGeometry geometry = new();
   FpsCounter fpsCounter = new();
@@ -804,8 +808,12 @@ public class Game : GameWindow {
       if (ribbonIndex + i >= photos.Count) {
         break;
       }
+      Photo photo = photos[ribbonIndex + i];
       Box2i box = geometry.ThumbnailBoxes[i];
-      DrawTexture(photos[ribbonIndex + i].Texture(), box);
+      DrawTexture(photo.Texture(), box);
+      for (int j = 0; j < photo.Rating; j++) {
+        DrawTexture(STAR_SMALL, Util.MakeBox(box.Min.X + 8 + ((STAR_SMALL.Size.X + 2) * j), box.Min.Y + 8, STAR_SMALL.Size.X, STAR_SMALL.Size.Y));
+      }
       if (ribbonIndex + i == photoIndex) {
         DrawBox(box, 5, Color4.Black);
         DrawBox(box, 3, Color4.White);