Label with small font set via LookAndFeel opens TextEditor with too large font

I have a Label that is user editable, and I have used a custom LookAndFeel to set the font size on the label smaller than normal (i.e. 10.0). Yet, when you double-click it to edit the text, the text inside the TextEditor is still very large and you can’t even see the top and bottom of it - the box is too small.

What do I need to do to make the text in the TextEditor box the same size as the unedited label? Thanks.