Increase visual distinction between categories and the group they live in
On the budgets or categories table, the group rows look the same as the standard category rows, making it difficult to parse. It would allow me to more quickly scan the list of budgets / categories if the category groups were more visually distinct from the child / ungrouped categories. Possibly give the group a heavier font weight or use a different background color for group rows.
I've mocked up a quick example of what mean. Thanks!