erc-track-use-faces

erc-track-use-faces is a variable defined in `erc-track.el'.
Its value is

t

Documentation:
Use faces in the mode-line.
The faces used are the same as used for text in the buffers.
(e.g. `erc-pal-face' is used if a pal sent a message to that channel.)

You can customize this variable.