in metropolis/metropolis.py [0:0]
def get_color(self, category_name: str) -> Tuple[int, int, int]:
"""Provides the default colors based on the category names.
Args:
category_name: Name of the category.
Returns:
Color for the category, or (0, 0, 0) if the category is not found.
"""
return self.colormap.get(category_name, (0, 0, 0))