acoc is a regular-expression based colour formatter for programs that display output on the command-line. It works as a wrapper around the target program, executing it and capturing the stdout stream. Optionally, stderr can be redirected to stdout, so that it, too, can be manipulated. acoc then applies matching rules to patterns in the output and applies colours to those matches.
gbdfed is a GTK+-based BDF font editor. Multiple fonts can be loaded from the command line. Multiple fonts can be open at the same time. Cutting and pasting glyphs between fonts, font name and property editing, and built-in online help. It imports PK/GF, HBF, PSF, CP, Linux FNT, VFONT, OpenType/TrueType, and some FON/FNT fonts. It can export PSF2 fonts.