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Subject: Question about font-lock faces
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Is it possible to interactively query whyt "face" a certain word is
using in a font-lock mode?

e.g I am in html-helper-mode and in the following text

<table class="main" align=CENTER>

the word "class" is dark blue and almost unreadable. There are no blue
settings in the customization of html-helper-faces so it is picking it
up from elsewhere. Ditto for certain words in C code when in c-mode.

So my question is : how to find out which "face" a word is being
decorated with?