the setting "groups" in vis_options seems not working

[timcypresswong]

Dear nx-vis-visualizer developer:

Thanks for offering such an convenient and useful visualization tool!
I have encountered a problem when customizing the vis_options using the groups option. Any customized changes in the groups option, e.g. shape, color do not change the apperance of the nodes, which keep the default setting (yellow, blue, red). The same problem also appears in your basic example 1, where the custom option is

{
    "nodes": {"font": {"size": 14}},
    "edges": {"smooth": {"enabled": True, "type": "dynamic"}},
    "groups": {
        "0": {"shape": "dot", "color": {"background": "lightcoral", "border": "red"}},
        "1": {"shape": "square", "color": {"background": "lightgreen", "border": "green"}}
    },
    "interaction": {"hover": True, "navigationButtons": True},
    "physics": {"enabled": True, "solver": "barnesHut"},
    "layout": {
        "randomSeed": 12345
    }
}

but the colors of the nodes remain yellow and blue.

The version is 0.2.0 installed via pip