Released Narrat 3.5.0, which now has first party themes support
It's now super easy to create, use and swap themes in narrat games
I updated the playground demo to have a little theme selection dropdown as a way to demo themes switching: https://demo.narrat.dev/
You can also see the docs on how to use/create themes at https://docs.narrat.dev/guides/themes.html
The JRPG theme used in that demo if you want an example: https://github.com/liana-p/narrat-engine/tree/main/packages/narrat-editor/src/themes/jrpg