The Web interface uses a monospace font to display much of the information. The client web browser will automatically use an appropriate monospace font installed on the client computer. In particular, the Bitstream Vera Sans Mono monospace font is given priority if available. If the client computer does not contain the Bitstream Vera TrueType fonts, they may be optionally installed. Follow the normal steps for installing fonts on the client computer's operating system.
Bitstream Vera TrueType Fonts:
http://ftp.gnome.org/pub/GNOME/sources/ttf-bitstream-vera/1.10/
Alternatively, the second priority font is Menlo, a monospace font pre-installed on modern macOS and iOS devices.