Thank you, Owen, for quick response.
Your answer makes me more confused, sorry. I am new at DVDA and probably me question was not correct enough. I am talking about menu button text. One of my menu has 18 links and I use for them Button style “Text only”. The font is Arial Narrow, 14. The text example on Preview screen looks like this

I think it’s bad, but on 42” TV it will be terrible.
And few questions, please, related to your answer:
What is “credit text”? I didn’t find it in DVDA help.
How can I adjust the button text resolution? I don’t see possibility to change it on Button Properties screen. Also, I really don’t see Properties by “right click over the Menu text”. This is my confusion.