Option to display number of notes within each section tab

It would be helpful to see the number of notes in each section without first having to activate the section tab.

Taking it a step further, the display could even be set to display the number of filtered notes (as the counter next to the search bar does). I imagine the option settings to look something like this:

• Display notes count in section tab:  On/Off
• Display filtered notes count:  On/Off

When implemented, it could look something like this: