Note: an earlier version of this story incorrectly claimed the event was held on Monday evening. Our apologies for the mistake.

After spotting Gretel Packer at lunch on Monday with fellow philanthropist Eleonora Triguboff at Global Headquarters, the billionaire would've been backing up a big week for Caledonia's big reveal at the Art Gallery of NSW (of which both women are trustees) just before dinner on Tuesday. It will be a cracking evening sitting for Matt Moran's Chiswick on site.