Use updated image loader for card frames.

yagicard/__init__.py

@@ -83,6 +83,7 @@ class SymbolDrawer ():
 
 images       = Images(IMAGES_DIRECTORY)
 symbols      = Images(SYMBOLS_DIRECTORY)
+frame_images = Images(FRAMES_DIRECTORY)
 
 class Field ():
     def __init__ (self, style_rules, value, card):
@@ -194,7 +195,11 @@ def merge_dicts (dicts):
     return fusion
 
 def draw_card (card, frame):
-    image = Image.open(os.path.join(FRAMES_DIRECTORY, frame['image']))
+    image = frame['image']
+    if isinstance(image, str):
+        image = frame_images[image]
+
+    image = image.copy()
     draw = ImageDraw.Draw(image)
     
     for field, value in card.items():