[Pharo-project] How to use freetype?

I feel a bit confused. I want to do something as easy as: font := Something fontByName: 'Arial'. but the problem is that i cannot find anything like that in freetype. There is FreeTypeFontProvider fontFor: aLogicalFont familyName: familyName but i puzzled, why it needs a logical font and why i should create it? Is there a general way to programmatically say: give me font 'Arial' pt size 9, or nil, if font cannot be found? -- Best regards, Igor Stasenko.