Unable to style colorbar in density mapbox

I am following the example given here: https://plotly.com/r/mapbox-density-heatmaps/

However, I am unable to change the color of the coloraxis (or use showscale = F or move the colorbar over on x).

The plot won't work unless coloraxis = 'coloraxis' is specified, and there doesn't seem to be a way to style the coloraxis.

# population density available from https://data.humdata.org/dataset/worldpop-population-density-for-haiti
pop_den <- read.csv(data_path)
plot_ly() %>% 
  add_trace(
    data = pop_den,  type = 'densitymapbox',  lat = ~Y,  lon = ~X,  z = ~Z,
    coloraxis = 'coloraxis',
    radius = 10) %>% 
  layout(
    mapbox = list(
      style = "carto-positron",
      zoom = 6.5,
      center = list(lon = -73.09, lat = 19.06),
      coloraxis = list(colorscale = "Grey", colorbar_x = 1.5)
      )
    )

Commencez par reproduire l’exemple R densitymapbox à l’adresse https://plotly.com/r/mapbox-density-heatmaps/ avec le code de l’issue, puis examinez la manière dont coloraxis et ses options de layout sont gérés. Le travail est terminé lorsque la couleur de coloraxis, la visibilité de colorbar et la position de colorbar peuvent être configurées comme demandé sans casser le graphique.