Selecting one cell NSTableView

There are several google results for this question, but they are ancient and didn't really help. So I am asking again for modern needs, how to customize selection for one row and column. Like the Numbers app. This way the row / column itself is not selected, but the focus ring is drawn for the selected row, column.

I am open to Cell or View based implementations. I've tried doing things inside

- (void)tableViewSelectionDidChange:(NSNotification *)notification

but couldn't get it to work or look good.

Has anyone done this, is there a better architecture for this?