Beautycase borders on Grid2 units

[lerb]

So, I've been trying to find where Grid2 handles its healthbars so I can add !beautycase borders to them with its "createborderlight" function, but I can't find it. Anyone that can help me with this?

Or, if there's another way to skin the borders of the actual unitframes, not just the background frame, that would be great

Thanks in advance!