def _convert_colormap(given_colormap):
    """Convert the given colormap into one that can be used by Matplotlib.

    References:
        - https://matplotlib.org/api/pyplot_summary.html#colors-in-matplotlib
        - https://matplotlib.org/api/cm_api.html
        - https://matplotlib.org/tutorials/index.html#tutorials-colors
        - https://matplotlib.org/tutorials/colors/colormaps.html#sphx-glr-tutorials-colors-colormaps-py
    """
    return given_colormap
