Libertine Open Fonts Projekt

Although the Cyrillic part of the font has been greatly improved in recent
releases, still there are several problems which prevent me from using
Linux Libertine for my documents. So I propose a patch which addresses the
following issues with Cyrillic letters (in the regular font):

The ascender of lowercase "б" is thicker at its basis than at the middle
part, and thus the glyph looks unnatural.

The glyphs for Д/д are unproportionally wide.

The left stem in Л/л is almost vertical, and such a design almost always
looks wrong for me. The stem is also quite thick (surely too thick in
lowercase), and so the tiny ball terminal cannot properly balance it.

Ж/ж, К/к and especially Я/я all look unbalanced: the upper part is
significantly "heavier" than the leg below.

З/з is unbalanced as well, but here the upper part looks too small and
slightly displaced. In general, this letter represents a difficult
challenge for font designers, and I find all "narrow" designs especially
unpleasant. So the glyphs should also be a bit wider.

In Э/э and Ukrainian Є/є the "tongue" is positioned too low (noticeably
lower than the optical glyph center) and the basic glyph oval doesn't look
smooth enough.

U+046E/U+046F has an erroneous shape taken from an old version of the
Unicode code chart. BTW, U+047C--U+047F are wrong too (see the comment to
U+047C in Unicode 5.1), but I haven't yet attempted to correct them.

Note that my patch fixes only the basic glyph shapes, but, of course, the
corresponding changes should be made also to all dependent glyphs (such as
Љ/љ) too. I also would like to supply similar patches for bold and
italic.