The user would like to be able to remove data labels. If you set font size to 0, there are still leader lines.

Unlike other visualizations, there is not currently a way to disable the data labels on pie and donut visualizations. You can work around this by making the data label font size 0 or making the text the same color as the background, but the leader lines remain, pointing at the now invisible text.

A tickbox to disable data labels would solve this issue and bring the visualizations into line with the options in our other visualization types. Disabling the data labels should also turn off the leader lines otherwise the user would be left with a visualization with tiny lines to nowhere like this: