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How can I customize excerpt settings?

You can adjust excerpt lengths and the ellipsis easily by adding the following code to the functions.php of your child theme and adapt it as you need: function my_custom_excerpt_length( $length ) {return 20;}add_filter( 'excerpt_length', 'my_custom_excerpt_length', 999 );function my_custom_excerpt_more($more) {return '…read more';}add_filter('excerpt_more', 'my_custom_excerpt_more');