def getColorSettings(key='HE'):
    """Returns color parameters for false coloring data.

    Parameters
    ----------

    key : str
        Defaults to 'HE'. Which RGB settings to use, when 'HE' will use
        RGB settings for virtual H&E staining.

        'IHC' will return color settings for virtual IHC/DAB staining.


    Returns
    -------
    color_dict : dict
        Dictionary with keys ('nuclei', 'cyto') or ('nuclei', 'anti'),
        which correspond to lists containing empirically derived
        RGB constants for false coloring.


    """
    color_dict = {'HE': {'nuclei': [0.17, 0.27, 0.105], 'cyto': [0.05, 1.0,
        0.54]}, 'IHC': {'nuclei': [0.65, 0.45, 0.15], 'anti': [0.4, 0.7, 0.9]}}
    return color_dict[key]
