I'm really grateful for the FONT_RAMP hack. I had a slight problem with font sizes on my KO2, just could not find that perfect size. Size 5 was a bit too small, size 6 too big. It's funny, because I've never had a problem with font sizes on any Kindle before. Thanks to helpful people on this forum who posted instructions how to make your own FONT_RAMP file, I now have the perfect size on my new Oasis. Yay!