Subplot enumeration for papers with Makie.jl

The solution so far is to use Label in the same location as the Axis.

Something like:

    GLMakie.Label(fig[i, 1], labels[i]; 
        tellwidth=false, tellheight=false,
        valign = :top, halign = :right, padding = (0, 5, 5, 0),
    )

This requires one to know beforehand to which figure location each axis corresponds to. I’m now trying to figure out how to exact this information from an Axis instance.