LearnDash Logo Link
//CHANGE LEARNDASH LOGO LINK
add_filter( 'learndash_focus_header_logo_url', function( $header_logo_url = '', $course_id = 0, $user_id = 0 ) {
$header_logo_url = 'CUSTOM_URL';
return $header_logo_url;
}, 30, 3 );
gtamborero