diff --git a/bashcolor/__init__.py b/bashcolor/__init__.py
index c9cda1f..0328745 100644
--- a/bashcolor/__init__.py
+++ b/bashcolor/__init__.py
@@ -6,7 +6,6 @@
 
 # see also: http://misc.flogisoft.com/bash/tip_colors_and_formatting
 
-
 from typing import Optional
 
 RESET = 0
@@ -100,14 +99,18 @@ def print_colors() -> None:
     color_pivot.append(256)
     color_pivot_start = color_pivot[:-1]
     color_pivot_end = color_pivot[1:]
-    color_table_list = [range(cs, ce) for cs, ce in zip(color_pivot_start, color_pivot_end)]
+    color_table_list = [
+        range(cs, ce) for cs, ce in zip(color_pivot_start, color_pivot_end)
+    ]
 
     for color_table in color_table_list:
         text = ""
         for color in color_table:
             color_string = str(color)
             padding = "".join([" " for e in range(3 - len(color_string))])
-            text += colorize(f" {padding}{color_string} ", background_256=color, with_end=False)
+            text += colorize(
+                f" {padding}{color_string} ", background_256=color, with_end=False
+            )
         print(text + colorize("", background=DEFAULT))