So I have to touch the code? Isn’t your job to make it WPML ready as you stated in your description that it’s WPML compatible. If I have to edit your core files, then your theme is not WPML compatible and you should change the description in themeforest.
And the example you gave me is so much confusing. Please give me more detailed example that is not for a third party software but the Domik theme. Thank you.