WP-34s emulator (Qt) font questions

[brouhaha]

I'm (still) working on packaging WP-34s for inclusion in the Fedora Linux package repository, and have some questions about the fonts the QtGui code uses, DejaVuSans.ttf and luxisr.ttf.

The DejaVuSans.ttf is the same length as the one that is installed by default on Fedora 19, but diff says that the content is not the same. Is the font modified specifically for WP-34s? If so, I respectfully suggest changing the name to DejaVuSans-WP34s.ttf or something similar.

Is the Luxi font modified? If so, that poses a problem in that the license for the Luxi fonts does not allow distribution of modified fonts. That technically makes the font not meet the definition of open source (whether it's modified or not).

Because of that license issue, the Luxi fonts cannot be included (modified or unmodified) in Fedora or in any Fedora packages. Can whoever chose the Luxi font, and thus knows what aesthetic tradeoffs were involved in that decision, recommend an open source font to use in its place?

Thanks!
Eric