add_trace：控制颜色

我有一个图，其中第一条迹线为灰色，该迹线将被其他颜色的迹线覆盖。我的问题是在plotly-版本4.7.1。以及 4.8.0 版本。我无法调整颜色。

一年前这段代码可以工作：

mysim=data.frame(x=rep(1:4,4),y=rbinom(16,10,0.5),id=rep(1:4,each=4))

my_colors<-c(             ## add the standard plotly colors
        '#1f77b4',  #// muted blue
         '#ff7f0e',  #// safety orange
         '#2ca02c',  #// cooked asparagus green
         '#d62728'  #// brick red
             ) 


plot_ly() %>%
 add_trace(x=1:4,y=rbinom(4,10,0.4),type='scatter',mode='lines',
            line=list(color='#CCCCCC',dash='dashed'),hoverinfo='skip',opacity=0.25) %>% 
  add_trace(data=mysim,x=~x,y=~y,type='scatter',mode='lines', split=~as.factor(id),
            line=list(color=my_colors),hoverinfo='skip',opacity=1) 

Sadly I do not have that machine anymore. But it seems that there were changes made to plotly since then. I also tried using the color argument instead of split and used colors instead of the line-list to specify the colors. It didn't have any impact. I still get this plot:

我在这里缺少什么？我怎样才能让它发挥作用？

See 这个问题 https://github.com/ropensci/plotly/issues/790.

如果你使用的话这有效color代替split如果你在plot_ly函数在开头，带有参数colors:

plot_ly(colors=my_colors) %>%
  add_trace(x=1:4,y=rbinom(4,10,0.4),type='scatter',mode='lines', line=list(color='rgb(0,0,255)',dash='dashed'),hoverinfo='skip',opacity=0.25) %>% 
  add_trace(data=mysim,x=~x,y=~y,type='scatter',mode='lines', color=~as.factor(id),
            hoverinfo='skip',opacity=1)