I am a computer illiterate, so forgive me if I ask a silly question.
I found that the contrast ratio on my Kindle DX pretty low, and Kindle's default fonts blurry. Several websites talk about replacing the default fonts with a bolder and darker font type, for example (https://sites.google.com/a/etccreati.../kdesignworks/
Is it possible that you provide a package with bolder fonts? Thanks.