Human: What is a good Python function to openpyxl to get cell background color. Assistant: 
Here is a Python function to openpyxl to get cell background color

import openpyxl

def get_cell_background_color(cell):
    """
    >>> cell = {'id': '1', 'name': 'Cell 1', 'type': 'cell', 'properties': {'color': '#000000'}}
    >>> get_cell_background_color(cell)
    '#000000'
    """
    return cell['properties']['color']

# Enter the cell
cell = {'id': '1', 'name': 'Cell 1', 'type': 'cell', 'properties': {'color': '#000000'}}

# Calling the function
cell_background_color = get_cell_background_color(cell)

#Remember to inspect code for bugs.