At a point now where the title font can be changed (with automatic sizing of rectangle that holds it)
The title fg and bg colors can be changed
The font can be changed for the header row along with the fg and bg colors.
The font can be changed for all the rest of the cells in the grid as a global setting.
The color of the grid lines can be changed.
See attached screenshot.
After I get all this documented in the help file I will post an update to play with.