I would like to suggest to add a Remarkup option to create a checkbox indicating "not done " status.
At the moment the checkbox can be
, to do, or
[x], done: my suggestion is to add a visual representation of a checkbox for an item that has been evaluated, worked on and rejected.
[x] is rendered as a small square with a “done” check mark, similar to
U+2611 character, I would suggest to include a syntax like perhaps
[*] to be rendered with a mark similar to