I couldn't find an option in the docs to lower the precision of the numbers shown in the pie and column charts. I would like to display the numbers rounded to the nearest whole number instead of decimals to the nearest tenth in the interactive HTML/JS charts as well as in the image version used for PDFs. Also, is it possible to control the steps/increments on the vertical axis to use whole numbers? The screenshot attached show the graph images that were generated with the format="image" option.