This is somewhat related.
Using the
IGButtonColumnManager, I put a some buttons in some cells, and that has increased the row height, which I was hoping to avoid, or at least minimize.
I was successfully able to reduce it a bit by changing the
CELL_BUTTON_PADDING variable from 4 to 2, and that adjusts the space between the button text and the button border, but there is also some space between the cell border and the button border that I would like to reduce.

I have colored the cell background red to illustrate it. It is currently using a 2px padding (the red part) that i would like to reduce to 1px instead. Is there a way to do this?