Checklist Progress Bar: Completion status display

By default, Kanban Tool task cards with checklist items show a numerical completed/total items count, or a ✔, when all items are completed:

The nifty Checklist Progress Bar script adds an extra dose of motivation by showing you a white progress bar on closed cards.

The length of the progress bar is proportional to how many of the task’s checklists have been completed, so that you get an instant visual on your progress, and can enjoy a sense of accomplishment as you move closer to completing your goals.