Accessing axis in Makie plot recipes

Specific Domains Visualization
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3

What about just applying a theme to the Axis, not a full programmatic access to it? For instance, I was hoping that in this recipe the newly created Axis would have a certain background color, etc, but it seems the theme information was not used in any way.

struct TestStruct
    data
end

ts = TestStruct([1,2,3])

@recipe(TestRecipe) do scene
    Theme(
    Axis = (
        backgroundcolor = :gray90,
        leftspinevisible = false,
        rightspinevisible = false,
        bottomspinevisible = false,
        topspinevisible = false,
        xgridcolor = :white,
        ygridcolor = :white,
    )
    )
end

function Makie.plot!(tr::TestRecipe{<:Tuple{TestStruct}})
    data = tr[1][].data
    scatter!(tr, data, data*2)
    tr
end

testrecipe(ts)