old_contents: """
  Misc helper functions.
  """
  import json
  import os
  import pathlib
  import subprocess
  
  
  # pylint: disable=too-few-public-methods
  class Color(object):
      """Color formats."""
      def __init__(self, hex_color):
          self.hex_color = hex_color
  
      def __str__(self):
          return self.hex_color
  
      @property
      def rgb(self):
          """Convert a hex color to rgb."""
          return hex_to_rgb(self.hex_color)
  
  
  def set_grey(colors):
      """Set a grey color based on brightness of color0."""
      return {
          "0": "#666666",
          "1": "#666666",
          "2": "#757575",
          "3": "#999999",
          "4": "#999999",
          "5": "#8a8a8a",
          "6": "#a1a1a1",
          "7": "#a1a1a1",
          "8": "#a1a1a1",
          "9": "#a1a1a1",
      }.get(colors[0][1], colors[7])
  
  
  def read_file(input_file):
      """Read colors from a file."""
      with open(input_file) as file:
          colors = file.read().splitlines()
      return colors
  
  
  def read_file_json(input_file):
      """Read colors from a json file."""
      with open(input_file) as json_file:
          colors = json.load(json_file)
      return colors
  
  
  def save_file(colors, export_file):
      """Write the colors to the file."""
      with open(export_file, "w") as file:
          file.write(colors)
  
  
  def save_file_json(colors, export_file):
      """Write the colors to a json file."""
      with open(export_file, "w") as file:
          json.dump(colors, file, indent=4)
  
  
  def create_dir(directory):
      """Alias to create the cache dir."""
      pathlib.Path(directory).mkdir(parents=True, exist_ok=True)
  
  
  def hex_to_rgb(color):
      """Convert a hex color to rgb."""
      red, green, blue = list(bytes.fromhex(color.strip("#")))
      return f"{red},{green},{blue}"
  
  
  def disown(*cmd):
      """Call a system command in the background,
         disown it and hide it's output."""
      subprocess.Popen(["nohup"] + list(cmd),
                       stdout=subprocess.DEVNULL,
                       stderr=subprocess.DEVNULL,
                       preexec_fn=os.setpgrp)
  
new_contents: """
  Misc helper functions.
  """
  import json
  import os
  import pathlib
  import subprocess
  
  
  # pylint: disable=too-few-public-methods
  class Color:
      """Color formats."""
      def __init__(self, hex_color):
          self.hex_color = hex_color
  
      def __str__(self):
          return self.hex_color
  
      @property
      def rgb(self):
          """Convert a hex color to rgb."""
          return hex_to_rgb(self.hex_color)
  
  
  def set_grey(colors):
      """Set a grey color based on the brightness 
         of another color."""
      return {
          "0": "#666666",
          "1": "#666666",
          "2": "#757575",
          "3": "#999999",
          "4": "#999999",
          "5": "#8a8a8a",
          "6": "#a1a1a1",
          "7": "#a1a1a1",
          "8": "#a1a1a1",
          "9": "#a1a1a1",
      }.get(colors[0][1], colors[7])
  
  
  def read_file(input_file):
      """Read colors from a file."""
      with open(input_file) as file:
          colors = file.read().splitlines()
      return colors
  
  
  def read_file_json(input_file):
      """Read colors from a json file."""
      with open(input_file) as json_file:
          colors = json.load(json_file)
      return colors
  
  
  def save_file(colors, export_file):
      """Write the colors to the file."""
      with open(export_file, "w") as file:
          file.write(colors)
  
  
  def save_file_json(colors, export_file):
      """Write the colors to a json file."""
      with open(export_file, "w") as file:
          json.dump(colors, file, indent=4)
  
  
  def create_dir(directory):
      """Alias to create the cache dir."""
      pathlib.Path(directory).mkdir(parents=True, exist_ok=True)
  
  
  def hex_to_rgb(color):
      """Convert a hex color to rgb."""
      red, green, blue = list(bytes.fromhex(color.strip("#")))
      return f"{red},{green},{blue}"
  
  
  def disown(*cmd):
      """Call a system command in the background,
         disown it and hide it's output."""
      subprocess.Popen(["nohup"] + list(cmd),
                       stdout=subprocess.DEVNULL,
                       stderr=subprocess.DEVNULL,
                       preexec_fn=os.setpgrp)
  
subject: Update docs