def prepare_colors(df_pd: pd.DataFrame):
    heat_min = df_pd['times'].min()
    heat_max = df_pd['times'].max()
    dif = (heat_max - heat_min)
    colors = [(((times - heat_min) / dif), ((times - heat_min) / (4 * dif)), 0.75) for times in df_pd['times']]
    return colors
def prepare_colors(df_pd: pd.DataFrame):
    heat_min = df_pd['times'].min()
    heat_max = df_pd['times'].max()
    dif = (heat_max - heat_min)
    colors = [(((times - heat_min) / dif), ((times - heat_min) / (4 * dif)), 0.75) for times in df_pd['times']]
    return colors