Thanks ! That works ! Was calling the wrong language file location.
Yes, both files are in the language folder and text doamin declared as well through the function:
load_theme_textdomain( 'hueman-child', get_template_directory().'/languages' );
Checked this out in my WP config and actually it is already set to define (‘WPLANG’, ‘fr_FR’); since I have installed french wordpress directly.
@Frenchtastic Thanks, I’m actually looking for translating the third party theme not the WordPress. But agree maybe the topic description is confusing.
