This package contains the templates used by the dashboard and the editor (as part of page templates).
See External Template Creation.
Run npm run workflow:render-template-posters
to generate and save each template page as an image in the build/template-posters/
folder.
Then move and commit the images to the GoogleForCreators/wp.stories.google repo under public/static/main/images/templates/<template-name>/posters
.
You will want to run the resulting images through ImageOptim locally to optimize them before adding them to the repo.