FixedChunk

import numpy as np
import marsilea as ma
from marsilea.plotter import FixedChunk
matrix = np.random.randn(20, 20)

h = ma.Heatmap(matrix)
chunk = ['C1', 'C2-1', 'C2-2', 'C4']
labels = np.random.choice(chunk, size=20)
h.hsplit(labels=labels, order=chunk)
h.add_right(FixedChunk(chunk, bordercolor="gray"), pad=.1)
h.add_right(FixedChunk(['C1', 'C2', 'C3'], fill_colors="red",
                       ratio=[1, 2, 1], ), pad=.1)
h.render()