How do I set default fonts in Impress?

I see how to set default fonts in Writer, but I don’t see how to set them in Impress. Is that possible? I’m using v4.4.0.3.
Thanks. I’m have to re-format each slide separately.

Hi - No need to re-format each slide : display the Styles window (sidebar or Format menu…), select the “Presentation styles”, Right-click the style to edit.

You can do this for the different layouts (Title slide, Title, Content…)