Here is the first attempt to notification dropdown.
The notification bell icon goes blue (branding colour) only at mouse hover, otherwise grey. Below in the menu, each section has it's own color and takes it only when it has update, otherwise subtle grey (as seen at Profile visitors). This is mostly likely going to be revised.
✎ ✎ @oykun
keyboard shortcuts: ← previous shot → next shot L or F like Z toggle zoom