Differentiate list / task fonts in sidebar

Is there any way you can differentiate the task list title text from the actual tasks text in the sidebar, just for visual clarity? Currently it's the same size font, the same indentation, almost even the same preceding box / circle (you could even argue that the small circle to signify name of task list is smaller than the tick boxes for the tasks, so it looks like the hierarchy is the other way round!)

I just find it a bit confusing without this differentiation, and can't see where one list stops and the next one starts.