diff --git a/doc/grid.png b/doc/grid.png
index a4a31f7..d9e3e87 100644
Binary files a/doc/grid.png and b/doc/grid.png differ
diff --git a/test.py b/test.py
index 59fdb57..8fdb097 100644
--- a/test.py
+++ b/test.py
@@ -39,7 +39,7 @@ if os.path.isfile(icon_colors_file_name):
 
 step = 24
 
-width = 240
+width = 24 * 16
 
 extracter = extract_icon.IconExtractor(icons_file_name)