filter_slugs example

if (
                        ( 'theme' !== $origin ) ||
                        ( 'theme' === $origin && $override_preset )
                    ) {
                        _wp_array_set( $this->theme_json, $path, $content );
                    } else {
                        $slugs_node = static::get_default_slugs( $this->theme_json, $node['path'] );
                        $slugs      = array_merge_recursive( $slugs_global, $slugs_node );

                        $slugs_for_preset = _wp_array_get( $slugs, $preset['path'], array() );
                        $content          = static::filter_slugs( $content, $slugs_for_preset );
                        _wp_array_set( $this->theme_json, $path, $content );
                    }
                }
            }
        }
    }

    /** * Converts all filter (duotone) presets into SVGs. * * @since 5.9.1 * * @param array $origins List of origins to process. * @return string SVG filters. */