Hi devs,
Silk is officially a PNG-only icon set. We initially used a GIF version
of the icons so that we can have some transparency in IE6. Since we
dropped support a long time ago for IE6, we introduced the PNG version
of the Silk icons as resources in 3.4 (XWIKI-7326). We've fixed all the
usages of the GIF icons from the platform code, so I think it's time to
drop the GIF icons from the non-legacy distribution.
Proposal: move the GIF silk icons into a a web-legacy module, merged
into the enterprise war only when the legacy profile is enabled.
--
Sergiu Dumitriu
http://purl.org/net/sergiu/