Zionworx

How do I permanently change the font face and size permamnently.

I want to use different fonts for different songs.

Select a song; in the middle section labelled Play list, there are 4 icons on the right. If you change the formatting for the song to whatever you want, then click 'save current style' icon, you can save that as the default style (then use 'assign default style to selected item' icon for later songs).
To create different styles, repeat the process, but choose custom and name the style (I use a combination of colour and point size eg yellow 39, blue 38) as you want.
Those styles will be available from the drop down style box at the top of the screen.