[IceHand]

The original Charis SIL does not include any kerning information and the italics are spaced rather tight (e.g. look at "gr" – they are touching and imho they shouldn't).

Since Charis is based on Bitstream's Charter I took it upon myself to copy the kerning information from Charter to Charis (I don't know why they didn't do that in the first place). Some kerning pairs were missing that I added (e.g. "Tä", "Wé" etc.). I also respaced the italics based on Charter's spacing.

Charis' license requires that modified versions of the font do not include "Charis" and "SIL" in its name, so I simply renamed the font to "Charta" (German for "Charter"). I made these changes a few years back for some print projects so the font is based on Charis 4.110.

Oh, and my version of the font only includes the basic latin subset of characters to make my life easier while modifying the font and I had no need for more characters.

Feel free to make modifications of my version. I can also include Fontforge source SFDs if needed.

Note: Most e-readers do not support kerning or only very basic kerning that's mostly useless (e.g. Cool Reader). I only know of FBReader that offers good kerning support. And yes, I hate that dedicated reading devices do not include support for something as typographically fundamental as kerning.

Edit: As GeoffR pointed out, kerning and thus this font works well with Kobo's epub reader (but not with Kobo's kepub reader, see below).