Are there policies/guidelines regarding the use of third-party icons in
software maintained on WMF's Gerrit instance (e.g. MediaWiki extensions)?
For example, the Chameleon
<https://www.mediawiki.org/wiki/Skin:Chameleon> skin appears to use
Glyphicons <http://glyphicons.com>, whose license
<http://glyphicons.com/license/> is not very clear. Even if it uses them
as part of the Twitter Bootstrap, is it legal/fair to embed a piece of
software (Glyphicons) that cannot be used freely without another piece
(Bootstrap)?
Even
git.wikimedia.org <https://git.wikimedia.org> uses Glyphicons (the
free PNG version) without complying with the CC-BY 3.0 license.
Wouldn't it be better to use a really /free/ icon set (such as
Font-Awesome <https://fortawesome.github.io/Font-Awesome/> or Elusive
Icons <http://shoestrap.org/downloads/elusive-icons-webfont/>) instead?