https://codereview.appspot.com/323940043/diff/20001/Documentation/snippets/new/three-sided-box.ly
File Documentation/snippets/new/three-sided-box.ly (right):
https://codereview.appspot.com/323940043/diff/20001/Documentation/snippets/new/three-sided-box.ly#newcode36
LGTM.
One small possible change.
https://codereview.appspot.com/323940043/diff/20001/Documentation/snippets/new/three-sided-box.ly
File Documentation/snippets/new/three-sided-box.ly (right):
LGTM
one nit:
https://codereview.appspot.com/323940043/diff/1/Documentation/snippets/three-sided-box.ly
File Documentation/snippets/three-sided-box.ly (right):
https://codereview.appspot.com/323940043/diff/1/Documentation/snippets/three-sided-box.ly#newcode45