# todo:
combine both A4 grids into the one chart
add letters/numbers to all sides of the grid.
add letter/number colour intensity to add shades of gray
print the cell https://printjs.crabbly.com/ or [jquery](https://stackoverflow.com/a/3798320/45966)
There is a feature with the stroke-dasharray that limits the minimum size to 8x8.
I could fix that by drawing dots instead of dashed lines but will save that for version 2.0