(2) Via your desktop machine, download the file for the appropriate font. I myself am currently using update_arialRndNrw_install.bin, which K Design Workers says “may be too bold for many readers, but it shows the most dramatic improvement in the readability for low-light conditions.”
Have the file go to the root director of the Kindle.
(3) Unplug the USB cable.
(4) Go to the Kindle’s home screen and hit Menu.
(5) Choose Settings.
(6) Hit Menu again.
(7) Choose Update your Kindle and wait for the K-machine to go through its paces, even at first it doesn’t seem to be.
(8) After the machine reboots, enjoy your new font!
Also, there might also be warranty risks. If you’re concerned, then update_uninstall.bin can roll you back to your original font set (I’m not sure if it covers up all the tracks). You might also look for stray files in your upper-level directory.
What a shame that Amazon should make us jump through these hoops. Ideally someday the Kindle will come with a number of built-in font choices.
The screenshot here is from a PC monitor with more contrast than the Kindle, and to me it seems to exaggerating the boldness.
To answer one question, yes, I’m still very grumpy about the lack of sufficient contrast in E Ink between text and background. Even with the font hacks, that’s still a problem. But thanks to the hacks, it’s less of one than before.
Remember, too—you can also use Mighty Bright-style lamp, which can clip onto the Kindle or an optional coverpack (careful not to use the clamp on the E Ink display).