Currently, there is no ability to change the font size of buttons on Quick Capture -- nor is there the ability to add a line break or push text onto a next-line using excessive spaces, etc. As a result, you can easily end up with scenarios like these
where one letter of a word is on a new line, and if you use the "small" button, disappears altogether
QuickCapture's JSON has a "font size" field, but changing the value does not affect the buttons' appearances in any way. The JSON recognizes "\n" line break, as the characters do not appear in the label, but it does not create a line break at that point, either.
So -- please give us the ability to change font size (and use manual line breaks), so we can avoid awkward letter cutoffs/etc!