add a new Google Font

Hi,

I’d like to add a new Google Font (Cinzel Decorative) in order to modify my headings.
I tried that :
https://kriesi.at/support/topic/new-custom-font/?login_error
but it didn’t help : when I go to Theme Options > Advanced styling > All headings > Font family, “Cinzel Decorative” isn’t in the list.

What did I miss ?

Thanks a lot for any help,
Christelle

Here is what I put in my functions.php :
if(isset($avia_config[‘use_child_theme_functions_only’])) return;

add_filter( ‘avf_google_heading_font’, ‘avia_add_heading_font’);
function avia_add_heading_font($fonts)
{
$fonts[‘Cinzel Decorative’] = ‘Cinzel Decorative’;
return $fonts;
}

add_filter( ‘avf_google_content_font’, ‘avia_add_content_font’);
function avia_add_content_font($fonts)
{
$fonts[‘Cinzel Decorative’] = ‘Cinzel Decorative’;
return $fonts;
}