strokes-minimum-match-score

strokes-minimum-match-score is a variable defined in `strokes.el'.
Its value is

1000

Documentation:
Minimum score for a stroke to be considered a possible match.
Setting this variable to 0 would require a perfectly precise match.
The default value is 1000, but it's mostly dependent on how precisely
you manage to replicate your user-defined strokes. It also depends on
the value of `strokes-grid-resolution', since a higher grid resolution
will correspond to more sample points, and thus more distance
measurements. Usually, this is not a problem since you first set
`strokes-grid-resolution' based on what your computer seems to be able
to handle (though the defaults are usually more than sufficient), and
then you can set `strokes-minimum-match-score' to something that works
for you. The only purpose of this variable is to insure that if you
do a bogus stroke that really doesn't match any of the predefined
ones, then strokes should NOT pick the one that came closest.

You can customize this variable.