[Spin-off from bug 416531, comment #27] Ed Hume <ehume@pshrink.com> says: "I believe you have chosen an unwise way to proceed with this. Please look at this thread: http://forums.mozillazine.org/viewtopic.php?t=630829 Basically, you have broken every third party theme for the Vista environment. I proposed an addition to chrome.manifest that would reverse the classic.manifest overrides and restore our themes to working condition. It did not work. What this means is that all themers will have to: 1. Discover from unhappy Vista users that certain buttons - some obvious, some obscure - do not work. 2. Figure out what is wrong. 3. Figure out how to fix it. In the short term, we themers will have to duplicate, for each of our themes, each of the files you have reassigned. Each developer, each theme. That's a lot of extra MB running through Moz Update, and a lot of man-hours spent finding, figuring and fixing by all the many theme developers. So I ask: why break everybody else's themes? Is there another method? One thing that occurs to me is that you could split the Firefox builds. You have three now - Linux, OSX and Windows. You could have four: Linux, OSX, Windows and Vista. OK, I know that's a bit harsh, but what you are doing to third party developers is also harsh; don't forget, we haven't heard from extension developers yet. Or you could do something else. Like fixing the chrome overrides bug. Or - heaven forfend - leave the current default as the default, and supply the Aero theme as an Add-on at AMO. Or even package the Aero theme as an add-on that ships with each windows build. That way, a user - even a non-Vista user - could choose the Aero theme from the Add-ons window. Heck, you could even use your classic.manifest file to choose which theme would be the default, based on OS. This would give the Vista users the Aero experience ab initio without breaking everybody else's themes. But please withdraw your current fix."

IMO we should ship just one theme for all Windows versions i.e. the Aero theme. It is better than the XP theme in all respects. XP theme curently looks nothing more than a faded, dumbed down version of the Aero theme. Aero theme is excellent (except for the Stop button which is better in the XP theme).

Marcia: Is there any special reason to set in-litmus? on this bug which is a dupe of bug 419319? I think this flag should be set on that bug instead.