The P10/P90/Mean annotations were tied to the visibility of the histogram curve, making it impossible to show only the cumulative curve together with the statistics lines. The annotations are now drawn by the non-cumulative curve as long as either it or its cumulative counterpart curve is visible, and the statistics settings are presented only by the non-cumulative curve.
A new "Show Cumulative Curve" checkbox on the grid statistics data source adds a cumulative curve on the right axis, in addition to the regular histogram curve. The cumulative curve shares the data source of its non-cumulative counterpart and follows all changes to it. The cumulative sum works with all frequency types and both graph types.
Remove the legacy Grid Statistics dialog (RicGridStatisticsDialog) and its context menu command, which provided the previous cumulative display.