What's Changed
- Update reference to newly released Thumbor 7 by scorphus in https://github.com/scorphus/thumbor-wand-engine/pull/8
- engine: Implement `has_transparency` by scorphus in https://github.com/scorphus/thumbor-wand-engine/pull/10
- Determine transparency based on alpha channel and its minima by scorphus in https://github.com/scorphus/thumbor-wand-engine/pull/11
- Drop support to Python 3.6 by scorphus in https://github.com/scorphus/thumbor-wand-engine/pull/11
**Full Changelog**: https://github.com/scorphus/thumbor-wand-engine/compare/0.1.0...0.1.1