Illume is an experiment in producing a proofing format for Twine 2 that offers more functionality than a simple text dump. It includes several features, such as generating basic story statistics and the option to export your story in twee source format, but its primary purpose is to provide an interface for reviewing and editing passages in a workflow that allows an author to easily have another person, even someone who does not use Twine, proofread and provide edits to a story.
The "illuminated" version of the story uses a checklist-style workflow for marking passages as reviewed, and also allows the editor to make corrections and changes in-place. Once the review is complete, the editor can generate and export a change list, showing a diff-style breakdown of all the changes made to each passage. That change list also provides a checklist-style workflow for the author to verify that all edits have been reviewed.
To use Illume as a Twine 2 proofing format, click the "Formats" link in Twine, then "Add a New Format" and enter this URL:
Clicking the star next to Illume in the "Proofing Formats" tab will set this as your default proofing format. Once set, the "View Proofing Copy" command in the Twine story editor interface will open the illuminated view of your story, with the option to save the export to a file.
If you're using Illume for anything or you have any questions or comments, please drop me a line and let me know.