Figure tweaking

using AlgebraOfGraphics, CairoMakie

To tweak figure attributes, simply use the figure keyword when plotting. For example

df = (x=rand(100), y=rand(100), z=rand(100), c=rand(["a", "b"], 100))
xyc = data(df) * mapping(:x, :y, layout=:c)
layers = linear() + mapping(color=:z)
plt = xyc * layers
fg = draw(
    plt,
    axis=(aspect=1,),
    figure=(figure_padding=10, backgroundcolor=:gray80, size=(800, 400))
)

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