VoronoiDelaunay includes domain corners

The calculation of the Voronoi tessellation with the VoronoiDelaunay.jl package seems to add the bounding corners as points in the tessellation. Is there a way to turn this off? If the source code needs to be altered does anyone know where this feature is as I couldn’t figure it out?

using VoronoiDelaunay, Plots

x, y = rand(N).+1, rand(N).+1 
tess = DelaunayTessellation()
push!(tess, Point2D.(x,y))

scatter(x,y, lims=(0,3), legend = false)
scatter!((1,1), color=:red)
scatter!((1,2), color=:red)
scatter!((2,1), color=:red)
scatter!((2,2), color=:red)

Screen Shot 2022-07-06 at 1.27.00 pm

Additionally, is there any way to achieve a tessellation with periodic boundaries?

Thank you very much for any pointers!