CSS classes for map markers
CSS class wt-yandex-map-items-marker has been added to all map markers. The CSS class wt-yandex-map-items-marker-viewed is added to the viewed markers (which were clicked on), which will allow you to highlight the viewed markers using styles in the CSS files of your template. Also, for marker containers ymaps, data attributes have been added to the map: data-module-id - module id and data-marker-id - marker id.