Add rich-argparse for colorized cli help menu

Author: finsberg

pyproject.toml

@@ -9,7 +9,7 @@ authors = [{name = "Henrik Finsberg", email = "henriknf@simula.no"}]
 license = {file = "LICENSE"}
 readme = "README.md"
 requires-python = ">=3.10.0"
-dependencies = ["fenics-dolfinx", "pint", "scifem", "rich"]
+dependencies = ["fenics-dolfinx", "pint", "scifem", "rich", "rich-argparse"]
 
 [project.scripts]
 pulse = "fenicsx_pulse.cli:main"

src/fenicsx_pulse/cli.py

@@ -2,11 +2,13 @@
 import logging
 from typing import Optional, Sequence
 
+from rich_argparse import ArgumentDefaultsRichHelpFormatter
+
 logger = logging.getLogger(__name__)
 
 
 def setup_parser():
-    parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+    parser = argparse.ArgumentParser(formatter_class=ArgumentDefaultsRichHelpFormatter)
     # Root parser
     parser.add_argument(
         "--dry-run",