Difference between status line and current date line

Answer:

The current date line will draw a straight line at the current date.

The status line bulges to the left or right according to each task row's status date. Thus, the status line is a visual indicator of ahead/behind

The status date can be shown 3 ways:

Display Status line (no additional options checked)

Status line with 3 times normal height option checked:

Status line with the Row Height option checked: