It also opens up other interesting functionality.
Or even fancier!
Yep, just add the fontSize value to the style object.
Since all of this is done in the designer, all of it is able to be bound.
Here I created a second text path and I'm using the following expression binding to switch between the two. Wouldn't really recommend doing this with text, but just because it was fun and it can be done.
if((toMillis(now(75)) % 75) >= 37,'#testPath','#testPath2')