Font standards

E16 themes have many choices when it comes to font setup.

X Font (normal/multibyte)
Fnlib
TrueType

Pango
Xft

In order for a theme to be functional on as many distributions as possible, which choice would be the most effective? Should we limit the themes here to a standard set (possibly UTF8) for the best support? If so which ones would be good candidates?

RE: the example

here's just an example of a "UTF-8"-ready theme:
Download

two assumptions:
1) you have a Terminus font installed on your PC (attempt to replace artwiz in general)
2) you substituted all Vera fonts to DejaVu (because Vera is not good for utf)

and yes, actually we do need a kind of "standards" for all font cases, though the glyphs are differ and fonts behave unpredictable (especially vector/ttf ones)