Chores
- **deps**: Update dependency mypy to v1.12.1
([`791bc40`](https://github.com/andrewjw/i75/commit/791bc409247d7c76476b5786d6199552f1c49cbf))
- **deps**: Update dependency mypy to v1.13.0
([`2cb1c4a`](https://github.com/andrewjw/i75/commit/2cb1c4ae0067b7d72d35bc026d63506908f7b55e))
Features
- Add set_colour method to base Image class.
([`3cc4128`](https://github.com/andrewjw/i75/commit/3cc412811f03791646737cf476d7793bee39eb01))