Transparent series points on a plot

Hi, this may be a simple question, but I would like to make a scatter plot where all markers have the same color, but some are more transparent than others. To do this, I have constructed a vector of RGBA objects, like below:

fading_colors = RGBA.(0.5, 0.5, 0.5, 0.1:0.1:1.0)

This is supposed to produce an array of grays where each increasing index is less and less transparent. This can be seen below when viewing the object:

When I plot these points (see the command below and the image), none of them are transparent. The gray color carries over though, so I can tell it’s seeing my object somehow. Any thoughts?

plot(1:10, 1:10, seriestype = :scatter, seriescolor = fading_colors, legend = false)

Need to use alpha argument:

using Plots; gr()
fc = RGBA.(0.5, 0.5, 0.5, 0.1:0.1:1.0)
scatter(1:10, 1:10, c=fc, alpha=fc, legend=false)