Resolved: R: How to modify the legend in plotly?

df <- data.frame (model  = c("A", "B", "C","D","E","F"),
                  share = c(12,20,15,9,60,20),
                  sale = c(16,25,18,14,67,28),
                  cost = c(14,19,28,24,57,28))

#set levels of model by cost
df$model <- factor(df$model, levels = arrange(df, desc(df$cost))$model)

library(tidyverse)

df_long <- df %>% 
  pivot_longer(
    cols = -model
  ) 


df_long %>% 
  filter(name != "cost") %>% 
  plot_ly(x = ~model, y = ~value, color = ~name, type = "bar", 
          customdata = ~name,  colors = c("blue", "gray"),
          hovertemplate = paste0("Model: %{x}<br>Value: %{y}<br>",
                                 "Name: %{customdata}<extra></extra>")) %>%
  add_lines(inherit = F, data = df, x = ~model, 
            y = ~cost, color = I("red"),
            name = "cost",
            hovertemplate = paste0("Model: %{x}<br>Value: %{y}<br>",
                                   "Name: cost<extra></extra>")) %>% 
  add_annotations(data = df, x = ~model, y = ~cost, text = ~cost,
                  bgcolor = "white", bordercolor = "black", 
                  xshift = 15, yshift = 15, showarrow = F) %>% 
  layout(barmode = "group")

or = ("function(el){
      costLeg = document.querySelectorAll('g.traces')[2];      /* third legend entry */
      cChW = costLeg.firstChild.getBoundingClientRect().width; /* text only */
      cR = costLeg.lastChild.getBoundingClientRect();          /*g trace space*/ 
      cR2 = costLeg.lastChild.outerHTML.split('\" ');
      cy = cR2[3].split('\"')[1];                              /* the y without padding*/
      cDf = cR.width - cChW - 14;                 /*legend width - text width - padding*/
      costLC = costLeg.lastChild.cloneNode(true); /* copy the current rect element */
      costLC.removeAttribute('pointer-events');   /* remove the pointer events */
      costLeg.removeAttribute('class');           /*stop refresh from changing it*/
      costLC.setAttribute('x', 3);                /* calc values + or minus padding */
      costLC.setAttribute('y', (cR.height - 6)/2 * -1); /* measure from center */
      costLC.setAttribute('width', cDf);
      costLC.setAttribute('height', cR.height - 6);
      costLC.setAttribute('style',
          'fill: rgb(0, 0, 0); fill-opacity: 0; stroke-width: 2px; stroke: black;');
      costLeg.insertBefore(costLC, costLeg.lastChild);
      }")

pL %>% htmlwidgets::onRender(or)