Comment 21 for bug 121510

+1, I think this is more important to have such a graph in the main page compared to categories.

This features is very well implemented in BudgetView (closed source and not maintained anymore). See :

https://www.mybudgetview.fr/files/images_fr/support/clefs_vue_budget.png

If needed, I can contribute for a more detailed specification, maybe coding also.