Zen is a framework for conducting user studies into gamification. It is not yet complete, so please bear with me.
The Bootstrap theme that comes bundled with Zen is Freelancer from StartBootstrap. This is released under the Apache 2.0 license.
Copyright (C) 2016 Luke Mitchell hi@lukemitchell.co
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.