[Request] Different grid color in the middle of the selection

[Toseflo]

It would be great, if you could add an option to have a different line color for the lines in the middle of the selection. So there would be 2 (for an uneven length) or 3 (for an even length) lines with a different color on each side of the cuboid selection. They would highlight the center-blocks and it would be a nice building-aid.

[AutonomousCat]

+1. I'd find this helpful too.

I also realized it's sorta already a thing when it comes to cylinder selections.

Then //center is also a thing (which the CUI can mimic the behavior of when it comes to multiblock centers), but it'd be nice to see the center without an extra command or modifying the world.