`fillgradient` doesn't work when `renderer=vscode` is used on notebook

[acmoudleysa]

According to the documentation, the latest version 5.20 includes fillgradient parameter for go.Scatter. However it only works when renderer is set to browser. Here goes the code (I am using the example provided in the documentation itself).

import plotly.graph_objects as go

fig = go.Figure(
    [
        go.Scatter(
            x=[1, 2, 3, 4],
            y=[3, 4, 8, 3],
            fill=None,
            mode="lines",
            line_color="darkblue",
        ),
        go.Scatter(
            x=[1, 2, 3, 4],
            y=[1, 6, 2, 6],
            fill="tonexty",
            mode="lines",
            line_color="darkblue",
            fillgradient=dict(
                type="horizontal",
                colorscale=[(0.0, "darkblue"), (0.5, "royalblue"), (1.0, "cyan")],
            ),
        ),
    ]
)

fig.show(renderer='vscode')

This doesn't work. But if you do fig.show(renderer='browser'), it works as expected.

[acmoudleysa]

Ah in notebook I should be using fig.show(renderer='notebook').