Let's stop using inline <img> for thumbnail magnify icon. According to bug 69277 comment 11, there are 87619775 requests per day for 'magnify-clip.png'. It should be embedded in some piece of CSS.
(Bug 65160 / [[mw:Thumbnail style update]] call for complete removal of the icon, but it would only affect the Vector skin.)
Version: 1.24rc
Severity: normal