first of all, congrats on this little software, it's very helpful!
Also I find something is missing, in the reports
the section "Where the Money Goes",
in the pie chart, the sub categories should be grouped.
For example, at the moment I have a part of the pie for food:supermarket, another one food:delivery and one food:market etc.
The way I see it, it could be nice to have them grouped, under "food". It would make the pie more readable
All the best