Challenger supports TrueType fonts, as well as the older bitmapped Roxen font format. The two fonts included in the distribution, avant_garde and lucida is in the older format. It is however much better to use TrueType fonts, since it is possible to scale them to any size with no bad effects.

On Windows Challenger should be able to use all installed fonts. Since there are no special place for installed fonts on Unix you will have to make sure that the Global Variables/Fonts.../Font directories variable includes the directories where your fonts are stored. In case you want to install fonts that are only to be used by Challenger we suggest using the local/fonts directory.