internal/licenses/testdata/freetype.df

Use of the Freetype-Go software is subject to your choice of exactly one of
the following two licenses:
  * The FreeType License, which is similar to the original BSD license with
    an advertising clause, or
  * The GNU General Public License (GPL), version 2 or later.

The text of these licenses are available in the licenses/ftl.txt and the
licenses/gpl.txt files respectively. They are also available at
http://freetype.sourceforge.net/license.html

The Luxi fonts in the testdata directory are licensed separately. See the
testdata/COPYING file for details.