diff --git a/markup/img.py b/markup/img.py
index 09bb72b..c6359be 100644
--- a/markup/img.py
+++ b/markup/img.py
@@ -123,7 +123,7 @@ def write_inklist(obj, mediabox, path):
     draw = ImageDraw.Draw(img, 'RGBA')
 
     for segment in obj['InkList']:
-        draw.line(segment, 'black', 3)
+        draw.line(segment, 'red', 3)
 
     # account for the difference in coordinate systems
     # between pdf and images.
@@ -142,9 +142,9 @@ def write_square_or_circle(obj, mediabox, path):
     draw = ImageDraw.Draw(img, 'RGBA')
 
     if obj["Subtype"] == LIT('Square'):
-        draw.rectangle(obj['Rect'], fill=None, outline='black', width=3)
+        draw.rectangle(obj['Rect'], fill=None, outline='red', width=3)
     else:
-        draw.ellipse(obj['Rect'], fill=None, outline='black', width=3)
+        draw.ellipse(obj['Rect'], fill=None, outline='red', width=3)
 
     # account for the difference in coordinate systems
     # between pdf and images.