[18:41:02] <wikibugs>	 10Multimedia, 10Commons, 10MediaWiki-File-management, 10Performance-Team: Support optimized WebP thumbnails as alternative to JPEG, PNG - https://phabricator.wikimedia.org/T27611 (10Ciencia_Al_Poder) I feel this task is WMF-only, and not meant to target MediaWiki (or MediaWiki-core). Currently it has been...