For the purpose of documenting grids, a lovely feature (set of features) would be:
* allow user to select mono-space font if desired
* allow user to select font point-size ration to grid spacing , i.e. 1, 2, 3 lines per grid cell
* allow user to select L-R, Top-bottom or Bottom-Top text orientation/direction
* colour
Or do people document their grids in other ways?