Box Plot line color changes the fill color as well, unless fill color is specified

When setting the line color for a box plot, it also makes the fill color of the box plot the same as the line color (with a different opacity I think). This is the case unless the fill color is set explicitly, but this doesn't help if for example your using a layout template for your colors. In my example below for the expected output I have to use a color picker to get the color of the default theme then put that into the fillcolor argument.

import plotly.graph_objects as go
import plotly.data
from plotly.subplots import make_subplots

data = plotly.data.iris()


fig = make_subplots(rows = 3, cols = 1, shared_xaxes=True)

fig.add_traces([
    go.Box(
            x = data["species"],
            y = data["sepal_length"],
            name = "no line color"
    ),
    go.Box(
            x = data["species"],
            y = data["sepal_length"],
            line = {"color":"black"},
            name = "line color = black"
    ),
    go.Box(
            x = data["species"],
            y = data["sepal_length"],
            fillcolor = "#a4adf8", #shouldnt need to do this
            line = {"color":"black"},
            name = "expected"
    )
], rows = [1,2,3], cols = [1,1,1])

fig

Commencez par exécuter la reproduction Python fournie avec plotly.graph_objects.Box et comparez les trois traces, en vous concentrant sur l’interaction entre line.color et fillcolor. La correction est terminée lorsque la définition de la couleur de ligne d’un box plot ne modifie plus la couleur de remplissage par défaut, afin que l’exemple attendu fonctionne sans spécifier fillcolor.