v5.0.0 is a complete overhaul of themer's core (rewritten from the ground up in TypeScript), addressing many issues and points of feedback since themer's inception.

New features and bug fixes

• themer now has an official programmatic JavaScript API.
• themer can now render multiple color sets simultaneously.
• General cleanup and fixes, like #89 and #150.

Breaking changes

• The multi-package paradigm has been retired; themer now ships as a single package for ease of use (and simpler maintenance into the future).
• Many outputted themes also include the source color set name so that multiple themer-generated themes can be used side-by-side (see #141).
• The output directory structure has been changed dramatically to better support multi-color-set theme generation.