Guess we could just default the borderless form to that (thinline) ... hmmm ... then maybe implement the BorderColor property - and if we wanted to "hide" the thinline border, say this (?):

$Form.BorderStyle = 0
$Form.BorderColor = $Form.BackColor

guess the problem is that BorderStyle = 0 sort of implies that there is no border - thin, thick or otherwise - hmmm ...