The pharmacy tab is not highlighted, as it is selected. It is selected only when the page loads. After , switching to "Inventory" tab, and again switched back to the patients tab, it does not get selected.
Steps to produce the bug:
1. Log on and open pharmacy module.
2. By default we have "Patients" view. Switch to "Inventory" view. It gets highlighted(background goes blue.)
3. Again switch back to "Patients" , it doesn't get highlighted.