Different color line below zero on line chart

[dmit1703]

I’d like to change the color of the line to red when the data is below 0 and green when it’s above it. So far I have the following line chart, for some reason, the lines are not connecting, is there a way to connect them?

traces.append({'x': df_req[df_req['sentiment'] < 0].dates,
               'y': df_req[df_req['sentiment'] < 0].sentiment,
               'name':tic, 'line':{'color':'green'}})
traces.append({'x': df_req[df_req['sentiment'] >= 0].dates,
               'y': df_req[df_req['sentiment'] >= 0].sentiment,
               'name':tic, 'line':{'color':'red'}})
fig = {
    'data': traces,
    'layout': {'title':', '.join(stock_ticker)+' Twitter Sentiment Index'}
}

[russellthehippo]

Add the python-plotly topic to this - more of a plotly question than dash.