mozilla/themes/classic/communicator/alerts/alert.css uses the same colors as the Modern theme instead of using system colors.
Are those system colors correct for the Mac? Or do we need a separate alert.css there?
I Don't have a Mac. None of the other files outside of the global directory show any differance between Mac and Windows, so it is as correct for Macs as any other file in the Communicator directory.
ccing mpt, who has often expressed his views on the color issues these sorts of things have on the Mac....
Not sure if this is relevant anymore. Nearest match nowadays is toolkit/themes/winstripe/global/alerts/alert.css which doesn't use system colors. The gnomestripe version does, though.