SVG Fonts allow that glyphs be animated. This leads to the need of updating the glyph rendering. Is there a way to avoid glyph caching on this kind of situation, but still have caching for the other non animated glyphs? I mean, is there a way of invalidating the cache of a specific glyph on demand? Another issue is the font substitution mechanism. SVG font has a missing-glyph tag which specifies which glyph must be used when a glyph was not explicitely specified for a certain unicode char, or unicode string (used for ligadure glyphs). This means that once specified a font family, that shouldnt be substituted by another one. Do we have "missing glyph"-like support on cairo/pango? Is there a way of avoiding the use of alternative fonts when specific glyphs are unavailable? JucaBlues