The images on the CentralAuth login page (i.e. below "Logging you in to Wikimedia's other projects") should be linked to their respective projects. For instance, the Wiktionary logo should link to the Wiktionary domain. This allows people to easily open tabs or windows for those projects after logging in.
This could be on a third-level basis (e.g. en.wikipedia.org login page would link to en.wiktionary.org), or second-level (any login page on wikipedia.org would link to wiktionary.org). If it is done on a third-level basis, this would obviously not be applicable to certain sites (like MediaWiki).
Version: unspecified
Severity: enhancement