On 13 December 2013 15:05, Paul A. Bristow
And I believe that the time has come to move to SVG for all graphics if possible. Even Internet Explorer 9 to 11 now supports SVG pretty well (as do most other browsers now that screen sizes range from a postage stamp up to a cinema screen with every imaginable aspect ratio and pixel density).
I was going to say the same thing. Although I just ran a crude check on the recent server log entries and IE 8.0 appears to be the most popular version. About 4% of the total logged http requests for the past few days were from IE 6/7/8. This is not really reliable data (and I wouldn't be surprised if some of those requests have spoofed browser ids), but it's still higher than I'd expect. But it's not really a problem if these people don't see the logos on github, so I'd go for using SVG.