diff --git a/src/wireviz/DataClasses.py b/src/wireviz/DataClasses.py
index c7dc007..a2f2a9e 100644
--- a/src/wireviz/DataClasses.py
+++ b/src/wireviz/DataClasses.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
+
 from typing import Optional, List, Any
 from dataclasses import dataclass, field
 from wireviz.wv_helper import int2tuple
@@ -72,7 +73,6 @@ class Cable:
     colors: List[Any] = field(default_factory=list)
     color_code: Optional[str] = None
     show_name: bool = True
-    show_pinout: bool = False
     show_wirecount: bool = True
 
     def __post_init__(self):
diff --git a/src/wireviz/Harness.py b/src/wireviz/Harness.py
index 595d13d..c11ad9a 100644
--- a/src/wireviz/Harness.py
+++ b/src/wireviz/Harness.py
@@ -109,10 +109,6 @@ class Harness:
                     else:
                         raise Exception('No side for loops')
                     for loop in connector.loops:
-
-                        # FIXME: Original string.format style had some unused arguments (port_to for 1st arg,
-                        # port_from for 2nd arg). De we need them back?
-
                         dot.edge(f'{connector.name}:p{loop[0]}{loop_side}:{loop_dir}',
                                  f'{connector.name}:p{loop[1]}{loop_side}:{loop_dir}')
 
@@ -159,8 +155,6 @@ class Harness:
                 for bla in p:
                     html = html + f'<td>{bla}</td>'
                 html = f'{html}</tr>'
-
-                # FIXME, original string.format had a unused bgcolor argument. Do we need it back
                 html = f'{html}<tr><td colspan="{len(p)}" cellpadding="0" height="6" border="2" sides="b" port="ws"></td></tr>'
 
             html = f'{html}<tr><td>&nbsp;</td></tr>'  # spacer at the end
@@ -189,17 +183,12 @@ class Harness:
                     from_ferrule = self.connectors[connection.from_name].category == 'ferrule'
                     port = f':p{connection.from_port}r' if not from_ferrule else ''
                     code_left_1 = f'{connection.from_name}{port}:e'
-                    # FIXME: Uncomment, then add to end of f-string if needed
-                    # via_subport = 'i' if c.show_pinout else ''
                     code_left_2 = f'{cable.name}:w{connection.via_port}:w'
                     dot.edge(code_left_1, code_left_2)
                     from_string = f'{connection.from_name}:{connection.from_port}' if not from_ferrule else ''
                     html = html.replace(f'<!-- {connection.via_port}_in -->', from_string)
                 if connection.to_port is not None:  # connect to right
                     to_ferrule = self.connectors[connection.to_name].category == 'ferrule'
-
-                    # FIXME: Add in if it was supposed to be here. the add to fstring two lines down
-                    # via_subport = 'o' if c.show_pinout else ''
                     code_right_1 = f'{cable.name}:w{connection.via_port}:e'
                     to_port = f':p{connection.to_port}l' if not to_ferrule else ''
                     code_right_2 = f'{connection.to_name}{to_port}:w'
@@ -214,11 +203,11 @@ class Harness:
 
     def output(self, filename, directory='_output', view=False, cleanup=True, fmt='pdf', gen_bom=False):
         # graphical output
-        digraph = self.create_graph()
+        graph = self.create_graph()
         for f in fmt:
-            digraph.format = f
-            digraph.render(filename=filename, directory=directory, view=view, cleanup=cleanup)
-        digraph.save(filename=f'{filename}.gv', directory=directory)
+            graph.format = f
+            graph.render(filename=filename, directory=directory, view=view, cleanup=cleanup)
+        graph.save(filename=f'{filename}.gv', directory=directory)
         # bom output
         bom_list = self.bom_list()
         with open(f'{filename}.bom.tsv', 'w') as file:
diff --git a/src/wireviz/build_examples.py b/src/wireviz/build_examples.py
index fc04fce..078e4e2 100755
--- a/src/wireviz/build_examples.py
+++ b/src/wireviz/build_examples.py
@@ -1,4 +1,5 @@
 #!/usr/bin/python3
+# -*- coding: utf-8 -*-
 
 import os
 import sys
diff --git a/src/wireviz/wireviz.py b/src/wireviz/wireviz.py
index b94b459..81b4771 100755
--- a/src/wireviz/wireviz.py
+++ b/src/wireviz/wireviz.py
@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-
 import argparse
 import os
 import sys
@@ -199,15 +198,10 @@ def parse_cmdline():
     parser = argparse.ArgumentParser(
         description='Generate cable and wiring harness documentation from YAML descriptions',
     )
-
     parser.add_argument('input_file', action='store', type=str, metavar='YAML_FILE')
-
     parser.add_argument('-o', '--output_file', action='store', type=str, metavar='OUTPUT')
-
     parser.add_argument('--generate-bom', action='store_true', default=True)
-
     parser.add_argument('--prepend-file', action='store', type=str, metavar='YAML_FILE')
-
     return parser.parse_args()
 
 
diff --git a/src/wireviz/wv_colors.py b/src/wireviz/wv_colors.py
index ad22659..055b467 100644
--- a/src/wireviz/wv_colors.py
+++ b/src/wireviz/wv_colors.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
+
 COLOR_CODES = {
     'DIN': ['WH', 'BN', 'GN', 'YE', 'GY', 'PK', 'BU', 'RD', 'BK', 'VT'], # ,'GYPK','RDBU','WHGN','BNGN','WHYE','YEBN','WHGY','GYBN','WHPK','PKBN'],
     'IEC': ['BN', 'RD', 'OG', 'YE', 'GN', 'BU', 'VT', 'GY', 'WH', 'BK'],
diff --git a/src/wireviz/wv_helper.py b/src/wireviz/wv_helper.py
index b06d40e..65ccdb3 100644
--- a/src/wireviz/wv_helper.py
+++ b/src/wireviz/wv_helper.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
+
 from typing import List