Enhance visibility of task selection highlighting; it's much too subtle!
Underhill, Lindsay
It’s very difficult to see which task is currently selected in task lists in the daily, weekly, etc task views. When navigating with the up/down arrow keys, the selection highlight is almost indistinguishable from the other tasks above or below it. A stronger visual indicator (e.g., higher contrast color, border, or clear background change) would make keyboard navigation much easier and more reliable.