vegalite_merge_legend.jl

using VegaLite, DataFrames

df = DataFrame(x = [0, 1, 2, 3, 4, 0, 1, 2, 3, 4], y = 1:10, style = ["A", "A", "A", "A", "A", "B", "B", "B", "B", "B"])

list_styles = ["B", "A"]
mycolors = ["#000000", "#ee00ff"]
    
p = df |>
@vlplot(
    mark={
        :line,
    },
    encoding={
        x={:x, title="x axis"},
        y={:y, title="y axis"},
        shape={:style, typ="nominal", scale={domain=list_styles}},
        color={:style, typ="nominal", scale={range=mycolors, domain=list_styles}}
    },
    resolve={
        scale={
            color="independent",
            shape="independent"
        },
    }
)