[03:24:31] <wikibugs>	 (03PS1) 10SamanthaNguyen: Use ExtensionRegistry for detecting Echo instead of detecting a class [skins/Refreshed] - 10https://gerrit.wikimedia.org/r/336744 (https://phabricator.wikimedia.org/T157655)
[09:31:41] <wikibugs>	 (03CR) 10Jack Phoenix: "This isn't 1.28-compatible because Echo's extension.json is a very recent addition, added in December 2016 (see Change-Id: I945e0b60ff4de8" [skins/Refreshed] - 10https://gerrit.wikimedia.org/r/336744 (https://phabricator.wikimedia.org/T157655) (owner: 10SamanthaNguyen)