Changing the font on a .ods title

I printed a .ods document that I created originally with Excel to discover the title is way too small.

So I selected Insert/Headers/Footers and found my Title. I saw the Note saying “Use the buttons to change the font or insert field commands such as date, time, etc.".

I can’t select a button from this screen, so I tried drop-down menus. I didn’t find any way to change the font of this Title.

What am I missing?

Use the first button after custom header to change the font, first select the text to change.