The outlines should be a consistent color all the way around the outline. There should be no dark pixels or blocks at corners or between lines.

Text spanning more than one line.  solid Text spanning more than one line.  double

Text spanning more than one line.  dotted Text spanning more than one line.  dashed

Text spanning more than one line.  ridge Text spanning more than one line.  groove

Text spanning more than one line.  inset Text spanning more than one line.  outset