Visually indicate collapsed/minimized tasks as “done”

When a task is marked done, the diagonal-line pattern is a really helpful visual indicator. But when that same task is collapsed/minimized, it loses the diagonal lines, so it’s no longer obvious whether it’s done or not.

I’ve caught myself checking a few times to confirm whether a minimized task is actually completed. It would be great if collapsed tasks could still retain some “done” indicator (even a subtle one), so the status stays clear at a glance.