This type of question belongs in the Themes forum, since it's something the theme would have to do.
I don't know of a good way off the top of my head. You could make an image with the columns baked in and stick it in the underlay positioned in the right place, but that wouldn't change shape with the various mods that distort the shape of the notefield.
< cybik> til Kyzentun fixes bugs for breakfast
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< maxvg1> shakesoda: then why do i still play lol
<@shakesoda> because you're an ITG player. And thus, a masochist
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<@shakesoda> Kyzentun: I think you might need to put down the meshes for a bit