TOLERANCE         342 util/outputscript.c   if (skew < -TOLERANCE || skew > TOLERANCE)
TOLERANCE         347 util/outputscript.c   if (xScale > 1.0 - TOLERANCE && xScale < 1.0 + TOLERANCE)
TOLERANCE         350 util/outputscript.c   if (yScale > 1.0 - TOLERANCE && yScale < 1.0 + TOLERANCE)
TOLERANCE         364 util/outputscript.c    if (angle < -TOLERANCE || angle > TOLERANCE)