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Question:Funnel plot with colorscale?

Hi,
I want to use colorscale with Funnel plot,But almost no effect.

Has anyone else encountered? How to I modify my code?

Ths!

The following is my example code :

install.packages("plotly")
library(plotly)
library(dplyr)
p <- plot_ly() %>%
  add_trace(type = "funnel",
            y = c("Website visit", "Downloads", "Potential customers", "Requested price", "Finalized"),
            x = c(55, 27.4, 20.6, 11, 2),
            textposition = "inside",
            textinfo = "value+percent total+x",
            opacity = 0.65,
            marker = list(colorscale = "YlGnBu",color=c(5,4,3,2,1),showscale=TRUE,
                          line = list(width = c(4, 2, 2, 3, 1, 1), color = c("wheat", "wheat", "blue", "wheat", "wheat"))),
            connector = list(line = list(color = "royalblue", dash = "dot", width = 3))) %>%
  layout(yaxis = list(categoryarray = c("Website visit", "Downloads", "Potential customers", "Requested price", "Finalized")))

p