Statistics Screen
I doubt many hobby users have much use for the Statistics screen, but it could be very useful to a business conducting 3D Printing.
As a business, I need to know how much to charge for the printer usage on a job. It comes down to amortisation of the cost over time, and adding in cost of maintenance. But the printers are not necessarily in use 24 x 7. And pertinent is the success rate of prints.
You currently have 3 graphs: Efficiency, Materials, Job Success.
For all 3 graphs, I would like to see the ability to get the same statistic averaged over selected printers (not just the one in view). The time window needs to be extended to cover a full 12 months.
Job success is presented as a stacked Bar Graph, it would be better presented as a Pie chart covering the time window selected with average success rate. (This is and Alternative to the Stacked Bar, not to replace it.)
RE: Statistics Screen
Good idea, but both pie and stacked bars are worst idea for presentation - plain normal bars with the same base with percentages and raw values work much better.
See my GitHub and printables.com for some 3d stuff that you may like.
RE: Statistics Screen
Speaking for yourself of course. For commercial use, a single figure for successful prints vs unsuccessful is all that is needed to help determine the charge for printer usage. This along with overall usage rate over time.
A set of bars just complicates the calculation.
A stacked bar is pretty much useless.
simplest is best.