erc-track-face-priority

erc-track-face-priority is a compiled Lisp function in `erc-track.el'.

(erc-track-face-priority FACE)

Return a number indicating the priority of FACE in
`erc-track-faces-priority-list'. Lower number means higher
priority.

If face is not in `erc-track-faces-priority-list', it will have a
higher number than any other face in that list.