As you can see from the screenshot the data grid efficiency (visible content on a given area) is is 6.0 approximately 20 percent less the in 5.5. This is true for columns and rows. To much space is wasted in this way.
This is because the cell size does not depends on the given font and it’s size.
Would be good if you could make this work like it does in 5.5.
Well, the (very pleasant) alternating color should remain
Thank you and Regards