def METHOD_NAME(self):
    colormaps = {n: palette[n] for n in ['rainbow', 'fire', 'bgy', 'bgyw', 'bmy', 'gray', 'kbc', 'CET_D4', 'blues', 'CET_L4']}
    stmap_colors = ['#0c3383', '#0a88ba', '#f2d338', '#f28f38', '#d91e1e']
    nodes = [0.0, 0.25, 0.50, 0.75, 1.0]
    mycmap = mpl_colors.LinearSegmentedColormap.from_list("mycmap", list(zip(nodes, stmap_colors)))
    color_list = [mpl_colors.rgb2hex(mycmap(i)) for i in range(mycmap.N)]
    colormaps['stereo'] = color_list
    return colormaps