Teeny-tiny font in annotation text

For some reason I’m getting a tiny, unreadable font size in annotations of images in DT Pro Office, and I can’t figure out how to change the size. Advice?

Click in the text, then choose View > Zoom In (keyboard shortcut ‘Control-Command-+’) until the view magnification makes reading comfortable. The setting will be remembered.

This doesn’t change the actual font size, but magnifies the viewed size.