jvier

Yes, it works perfectly now both the categories and the colors. Thank you.

Using the updated plugin and the add_terms filter don’t seem to have changed anything besides the fact that the add_terms filter keeps adding categories everytime the calendar page is loaded.

I tried applying the code you sent me (putting the category slugs in the ‘translated_termx’ slots) and it does spread the colors to the translations but the calendar disappears completely from the frontend only leaving the legend categories.
I entered the code as follows,

add_filter( 'teccc_get_terms', 'wpml_translated_tec_category_slugs' );
	function wpml_translated_tec_category_slugs( $all_terms ) {
	$translated_terms = array( 'atelier-cuisine-en-anglais', 'atelier-cuisine-en-espagnol', 'atelier-cuisine-en-francais', 'cooking-classes-in-english', 'cooking-classes-in-french', 'cooking-classes-in-spanish' );
	$merged_terms = array_merge( $all_terms, $translated_terms );
	return $merged_terms;
	}