load JSON files directly instead of embedding in XML.

Shared/ExtensionMethods.cs

@@ -1,11 +1,19 @@
 using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Content;
 using Microsoft.Xna.Framework.Graphics;
+using System.IO;
 
 // All extension methods on built-in types (of C# or MonoGame) go in this file.
 // Methods are ordered alphabetically by type name.
 
 namespace SemiColinGames {
   static class ExtensionMethods {
+    // ContentManager
+    public static string LoadString(this ContentManager content, string path) {
+      string fullPath = Path.Combine(content.RootDirectory, path);
+      return File.ReadAllText(fullPath);
+    }
+
     // Point
     public static void Deconstruct(this Point point, out int x, out int y) =>
       (x, y) = (point.X, point.Y);

Shared/Sprites.cs

@@ -83,7 +83,7 @@ namespace SemiColinGames {
 
     public static void Load(ContentManager content) {
       Executioner = new Sprite(
-          Textures.Executioner, content.Load<string>("sprites/ccg/executioner_female_json"));
+          Textures.Executioner, content.LoadString("sprites/ccg/executioner_female.json"));
     }
   }
 }