Hi w3c validator error character pipe “|”, recomend best practices chage nfc character ‘%7C’,
Replace:
$google_fonts = implode(‘|’, $google_fonts);
With:
$google_fonts = implode(‘%7C’, $google_fonts);
Another thing as I can add more google fonts, <h4>, <h5>, <h6>, of course I define in the font-size in css, but as I get the source is imported by the theme generatepress addons typography from google.