Custom image sizes gives every event a square, poster, and landscape crop so the same show looks right wherever it lands, whether that is a calendar widget, a Just Announced card, or a full page built in Website Studio. Instead of exporting one flyer and hoping it fits every placement, the crop is ready for each spot before the event goes live.
Because events sync to your website automatically, the right crop follows the event without anyone on your team touching an image editor. Marketing stays consistent across the site, and the door team never has to chase down a replacement graphic because the original was the wrong shape.