Originally Posted by PeterT
Updates to the first post are being added as I find them.
Just to save a bit of effort for anyone using JSWolf's modified Charis SIL font, I've attached a .zip file with his latest regular and compact versions with the font names set as required for a Kobo device.
Just unzip the .ttf files into the fonts directory on your Kobo, power cycle and enjoy.
Edit: corrected a typo in the BoldItalic variant. Up to 2.6.1, BoldITalic worked but now it's fussier and wants BoldItalic.