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

Comienza ejecutando la reproducción de Python proporcionada con plotly.graph_objects.Box y compara las tres trazas, centrándote en la interacción entre line.color y fillcolor. La corrección estará completa cuando establecer el color de línea de un box plot ya no cambie el color de relleno predeterminado, de modo que el ejemplo esperado funcione sin especificar fillcolor.