Fix ColorArgumentParser to color errors

skore/src/skore/cli/color_format.py

@@ -104,3 +104,13 @@ def print_help(self, file=None):
         """Print the help message."""
         console = Console(file=file)
         console.print(self.format_help())
+
+    def error(self, message):
+        """Print error message with Rich formatting and exit."""
+        console = Console(stderr=True, theme=skore_console_theme)
+        console.print(f"[red bold]error:[/red bold] {message}")
+
+        console.print(f"\n{self.format_usage()}")
+
+        console.print("\nFor more information, try '[cyan]--help[/cyan]'")
+        self.exit(2)