Support message bundle in theme resources

Developping a custom SMS authenticator provider, i uses freemarker template to display new authtication pages (for SMS code filling for example).

These page is handle by my provider maven project into src/main/resources/theme-resources/templates
It works fine, my challenges can serve the embed ftl from my project by for now, my pages translations was not taken.

Is there a way to embed the translations, relative to these pages in my project, without adding this translations in the theme properties on KEYCLOAK install ?

I try on this location with no effect :

• src/main/resources/messages
• src/main/resources/theme-resources/messages
• src/main/resources/theme-resources/templates/messages

My need is to totally manage my provider pages (views, views translations (i18n), css and js resources) directly in my provider project without a need to load a custom or override an existing theme.