Your customer asks you to demonstrate their app with localization changes.

Thei18n.propertiesfile holds thetranslation keys and valuesfor different languages. Demonstrating localization involves:

Showing these files with translations like i18n_fr.properties or i18n_de.properties.

SAPUI5 dynamically picks the language based on browser settings.

SAPUI5 Localization Guide:

“Translation values are maintained in i18n.properties files. The framework selects the appropriate version based on the user’s language preference.”

The other choices (e.g., preview frame or project.json) don’t expose actual translation content.