I am trying to create a Languages child theme for Gamma theme but I can't make it work (by the way CSS in child theme works perfect).

I copied the languages/en_US/theme.mo and theme.po into the child_theme folder and then in child_theme/functions.php I pasted below code.

function gam_child_custom_lang() {
 osc_locale('locale', osc_current_web_theme_url('../gamma_child/languages/en_US/theme.mo'));
}
osc_add_hook('header', 'gam_child_custom_lang')


Anyone willing to help please?

I think this was missing in documentation, try to create lang file in same way as for standard theme