A small venue, studio or event organizer needs a new poster every week, and there isn't always a designer around. Here a poster comes from a handful of fields: the event name, a short description, date and time, and the venue.
In the card maker choose “Poster” and the event type: concert, party, workshop, exhibition or other. The event name is required — it's the headline. The description is a line or two about what's happening: “80s & 90s hits all night long”, “All materials included”. Date, time and address get their own fields so they never get lost in the design.
Neon works for nightlife, paper-cut, minimal or watercolor for workshops and exhibitions. Use 9:16 for Stories, square for posts and A5 for print — a 148×210 mm file at 300 dpi. GPT Image 2.5 by OpenAI draws the poster, and the finished image is checked against your text and redrawn if there's a typo.