add comment about exif width/height tags

Program.cs

@@ -171,6 +171,7 @@ public class Photo {
     if (exifs != null) {
       // FIXME: handle Orientation
       // FIXME: handle date shot / edited (and sort by shot date?)
+      // FIXME: PixelXDimension & PixelYDimension hold the image geometry in Exif.
 
       IExifValue<string>? model;
       if (exifs.TryGetValue(ExifTag.Model, out model)) {
@@ -541,8 +542,8 @@ public class Game : GameWindow {
     // Load textures from JPEGs.
     // string[] files = Directory.GetFiles(@"c:\users\colin\desktop\photos-test\");
     // string[] files = Directory.GetFiles(@"c:\users\colin\pictures\photos\2023\07\14\");
-    string[] files = Directory.GetFiles(@"G:\DCIM\100EOSR6\");
-    // string[] files = Directory.GetFiles(@"C:\Users\colin\Pictures\photos\2018\06\23");
+    // string[] files = Directory.GetFiles(@"G:\DCIM\100EOSR6\");
+    string[] files = Directory.GetFiles(@"C:\Users\colin\Pictures\photos\2018\06\23");
     // string[] files = Directory.GetFiles(@"C:\Users\colin\Desktop\Germany all\104D7000");
     // string[] files = Directory.GetFiles(@"C:\Users\colin\Desktop\many-birds\");