Add a simple example to demonstrate the colors available in cmd2.Color

Author: tleonhardt

examples/color.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+"""A sample application for cmd2. Demonstrating colors available in the cmd2.colors.Color enum.
+
+Execute the taste_the_rainbow command to see the colors available.
+"""
+
+from rich.style import Style
+
+import cmd2
+from cmd2.colors import Color
+
+
+class CmdLineApp(cmd2.Cmd):
+    """Example cmd2 application demonstrating colorized output."""
+
+    def __init__(self) -> None:
+        # Set include_ipy to True to enable the "ipy" command which runs an interactive IPython shell
+        super().__init__(include_ipy=True)
+        self.intro = 'Run the taste_the_rainbow command to see all of the colors available to you in cmd2.'
+
+    rainbow_parser = cmd2.Cmd2ArgumentParser()
+    rainbow_parser.add_argument('-b', '--background', action='store_true', help='Show background colors as well')
+
+    @cmd2.with_argparser(rainbow_parser)
+    def do_taste_the_rainbow(self, args) -> None:
+        """Show all of the colors available within cmd2's Color StrEnum class."""
+
+        for color_member in Color:
+            style = Style(bgcolor=color_member.value) if args.background else Style(color=color_member.value)
+            self.poutput(f"{color_member.name}", style=style)
+
+
+if __name__ == '__main__':
+    import sys
+
+    c = CmdLineApp()
+    sys.exit(c.cmdloop())