Would you accept to add new faces that could be useful to some major modes ?

I am thinking of

font-lock-tag-name-face
font-lock-tag-bracket-face
font-lock-attr-name-face
font-lock-attr-value-face

and also

font-lock-symbol-face

I am the author of web-mode.el and think that inheriting from those faces
would provide better defaults for users of those modes.

It would also ease the work of theme maintainers.

Regards

fx