import ee
import geemap.foliumap as geemap

params = {
    'width': 4.0,
    'height': 0.3,
    'vmin': 0,
    'vmax': 6000,
    'cmap': 'terrain',
    'label': 'Elevation (m)',
    'orientation': 'horizontal',
    'transparent': False,
}

geemap.save_colorbar('colorbar.png', **params)

Map = geemap.Map()

image = ee.Image('USGS/SRTMGL1_003')
vis_params = {
    'min': 0,
    'max': 6000,
    'palette': 'terrain',
}
Map.addLayer(image, vis_params, 'SRTM')

Map.add_colormap(position=(55, 5), **params)
Map

params['transparent'] = True

Map = geemap.Map()
Map.addLayer(image, vis_params, 'SRTM')
Map.add_colormap(position=(55, 5), **params)
Map

params = {
    'width': 0.3,
    'height': 4,
    'vmin': 0,
    'vmax': 6000,
    'cmap': 'terrain',
    'label': 'Elevation (m)',
    'orientation': 'vertical',
    'transparent': False,
}

Map = geemap.Map()
Map.addLayer(image, vis_params, 'SRTM')
Map.add_colormap(position=(85, 5), **params)
Map

Map = geemap.Map()
Map.addLayer(image, vis_params, 'SRTM')
image = 'https://i.imgur.com/SpmE7Cs.png'
Map.add_image(image, position='bottomright')
Map