When working in the note editor, formatting like "1. some text" appears to be treated the way Microsoft Word treats it: It seems to be considered a numbering scheme, and automatic changes, addition of the next number with "enter" key, etc., are applied.

I hate this.

How can I turn this off so that ...

Apologies for the newbie question.

The default tree font appears to be Segoe UI. The default note font appears to be Arial.
How did these choices come to be?
Do others change the default fonts? If so, why?
I'm sort of leaning towards changing the default note font to Segoe. But, I'm not wedded to ...