As the title states, and according to ticket:1655#comment:10 we would like to replace the bars in the graphs to a box-plot if there's more than one data point available, which would give us much more information density for the charts.
After talking with Nick, he asked me to write up a ticket and assign it to him so he can possibly get to it in the future.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1675