Add legends for analyses

[jtrakk]

I have some Analyses on a plot, such as a linear fit and a smoother, in different colors. I would like it to create a legend that shows what the lines mean.

let N = 1000
(
    data(DataFrame(a=rand(N), b=rand(N)))
    * mapping(:a, :b)
    * (
        visual(Scatter, markersize=2)
        + AlgebraOfGraphics.linear() * visual(color=:teal)
        + AlgebraOfGraphics.smooth(span=0.1) * visual(color=:pink)
    )
)|> draw(resolution=(800,600))
end

[pkofod]

Any update on this?