While Blaze itself is free and doesn't require a license, you can donate to Duncan, the developer behind it to show your appreciation.
For information on installation and usage of this addon, please review the documentation.
- Documentation: Full documentation of Blaze
- Changelog: View releases of Blaze
- Issue Tracker: Find & report bugs in Blaze
If you've got any support queries, development or otherwise, drop me an email. I'll respond as soon as I can.