Indigo version 1.0.0 was released under GNU General Public License v3.0
Indigo version 1.4.0 was re-licensed under Apache License, Version 2.

Bingo version 1.0.0 was released under GNU General Public License v3.0
Bingo version 1.9.0 was re-licensed under Apache License, Version 2.

Current version is distributed by the terms of the Apache License, Version 2,
which is included in the file LICENSE, found at the root of the Indigo source tree.
