Most probably you want to use fonts other than bundled ones. Mad Level Manager gives you two methods of font preparation:

This is a brand new feature of Mad Level Manager 1.4.0. You just need to use tool like Glyph Designer or BMFont to generate bitmap font texture, and then pass .fnt file to Mad Level Manager. This is the simplest and recommended method of preparing fonts.

This method used prepared in any graphics editing software font and a glyph list. In fact it’s a lot more difficult to create good looking font using this method, but there are cases when you might want to use this method instead of previous one.