library/Theme/General.php
public function sitesGridImage($image, $site)
    {
        switch_to_blog($site->blog_id);

        $image = null;

        if ($frontpage = get_option('page_on_front') && get_the_post_thumbnail_url(get_option('page_on_front'))) {
            $src = get_the_post_thumbnail_url($frontpage);

            if ($src) {
                $image = '<div style="background-image:url(' . $src . ');" class="box-image">
                   <img alt="' . $site->blogname . '" src="' . $src . '">
                </div>';
            }
        }

        if (!$image && $logo = get_field('logotype_negative', 'option')) {
            $image = '<div class="box-image">
               ' . \Municipio\Helper\Svg::extract($logo['url']) . '
            </div>';
        }

        restore_current_blog();

        return $image;
    }
public function sitesGridImage($image, $site)
    {
        switch_to_blog($site->blog_id);

        $image = null;

        if ($frontpage = get_option('page_on_front') && get_the_post_thumbnail_url(get_option('page_on_front'))) {
            $src = get_the_post_thumbnail_url($frontpage);

            if ($src) {
                $image = '<div style="background-image:url(' . $src . ');" class="box-image">
                   <img alt="' . $site->blogname . '" src="' . $src . '">
                </div>';
            }
        }

        if (!$image && $logo = get_field('logotype_negative', 'option')) {
            $image = '<div class="box-image">
               ' . \Municipio\Helper\Svg::extract($logo['url']) . '
            </div>';
        }

        restore_current_blog();

        return $image;
    }
public function sitesGridImage ( $ image , $ site ) { switch_to_blog ( $ site -> blog_id ) ; $ image = null ; if ( $ frontpage = get_option ( 'page_on_front' ) && get_the_post_thumbnail_url ( get_option ( 'page_on_front' ) ) ) { $ src = get_the_post_thumbnail_url ( $ frontpage ) ; if ( $ src ) { $ image = '<div style="background-image:url(' . $ src . ');" class="box-image">
                   <img alt="' . $ site -> blogname . '" src="' . $ src . '">
                </div>' ; } } if ( ! $ image && $ logo = get_field ( 'logotype_negative' , 'option' ) ) { $ image = '<div class="box-image">
               ' . \ Municipio \ Helper \ Svg :: extract ( $ logo [ 'url' ] ) . '
            </div>' ; } restore_current_blog ( ) ; return $ image ; }
Returns image for module site grid

@param string $image String containing previous image
@param object $site  The site object

@return string
Returns image for module site grid