The font is rigged (hard to find, but it is in Title Style) and so is the text size. It will always revert to Helvetica Neue Bold each time you restart fcpx.
I removed both of those and fixed a small glitch in the background logo where, if you changed the alignment from right to center or left, the background logo would "stick" at the last location (and the only fix I could find in FCPX was to reload the drop zone *after* setting the alignment). With my "fix" the "logo" still sticks when changing the alignment until the playhead is moved, then it will snap into place.
You can download the modified title template here:
https://fcpxtemplates.com/downloads/
If you need help installing it:
https://fcpxtemplates.com/installing-plugins-for-fcpx/