Well, english is not my mother tongue...I thought it was ok to use this name, but it seems not then. How would you have called it?
Usually a check mark to indicate completion or something has been verified and a checklist is a list of items to remember. You might ‘flag’ something to draw attention to it and usually in a negative sense like there is some problem or rule has been broken.
Ok, thanks for the explanation. Should have called it 'Checky' then...