Version: 13.0

Problem:
Custom Paragraph Styles can currently be created in the Captivate GUI, but:
- they cannot be renamed or deleted,
- they do not appear in the Theme Editor,
- they are not manageable through the theme.json and customisations.json.

This leads to cluttered style lists, inconsistent formatting across slides, and limits proper corporate design handling.

Suggestion:
- Enable full management of Custom Paragraph Styles:
- Create in the Theme Editor
- Rename
- Delete
- Expose and edit through theme.json and customisations.json

Optional Enhancements:
- Sorting styles
- Grouping (e.g., Headings, Body Text, Labels)

Benefits:
- cleaner style governance
- consistent branding
- easier long-term maintenance
- no accumulation of unused style entries