D good first issues

The current maintainer of Tilix is stepping down due to a lack of personal interest in adding new features or fixing bugs they don't use. They are seeking a new maintainer to revitalize the project, though they will continue to provide minimal maintenance to keep it functional. This issue is a call for community involvement to ensure the future development of Tilix.

The task requires modifying Gamut's image processing functions that convert floating-point pixel data (float) to 8-bit or 16-bit integer representations (ubyte/ushort). Currently, out-of-range values (less than 0 or greater than 1) cause wraparound, leading to bugs. The fix involves clamping these values to the valid 0-1 range before the conversion, eliminating the wraparound issue and ensuring predictable behavior.