How to turn off the highlight lines on a surface plot

📊 Plotly Python
1

These black lines are showing up on the surface plots which I’m using to shade the top and bottom faces of my cube.

I can’t seem to turn them off so that nothing appears and moves around when you hover over the plot. Any ideas?

image

# add any shaded planes
FACE_OPACITY = 0.1
TOP_FACE = [[1, 1], [1, 1]]
fig.add_trace(
    go.Surface(
        z=TOP_FACE,
        showscale=False,
        opacity=FACE_OPACITY,
        colorscale=[[0, "grey"], [1, "grey"]],
        name="Top Face",
    )
)