wish: statistics time - Income/Expense/Net graph

[Chris Uglow]

The Statistics Report contains lots of nice options to view categories/subcategories in various different ways. I find the "Stack" graph (with Mode: "Time" & View by: "category" or Subcategory") particularly useful. However, in its current form it only makes sense if you filter out all income or all expenses; otherwise +/- get stacked on the same side of the graph which makes no sense.

If the stack for each period (e.g. a month) was split between income and expenses (based on category) then it would be easy to see the net change for that month at the same time as the category breakdown. This could be enhanced further with a line graph plot over the top which shows either the difference (net) of income-expenses each period or the cumulative difference.