Also useful would be a standard way to normalize the apparent size and weight of different fonts so the fallbacks won't look like shit. Apparently my problem is

Also useful would be a standard way to normalize the apparent size and weight of different fonts so the fallbacks won't look like shit. Apparently my problem is more with the Courier font bundled with Ubuntu, as replacing Courier on that page with just about any other font makes it somewhat readable (still a "disabled" gray, but at least visible).