After the landing of bug 345466, the corner outside the scroll button is the color of the scroll button itself when hovered. Maybe the scroll button images aren't properly transparent. See the upper-right corner of the scroll button shown in https://bugzilla.mozilla.org/attachment.cgi?id=234113 .

(In reply to comment #0) > After the landing of bug 345466, the corner outside the scroll button is the > color of the scroll button itself when hovered. Maybe the scroll button images > aren't properly transparent. > > See the upper-right corner of the scroll button shown in > https://bugzilla.mozilla.org/attachment.cgi?id=234113 . > I think it is the selection color which appear on hover. On my Kubuntu, th selection color is orange and this color appears in: the top right corner of the left scrollbox button the top left corner of the right scrollbox button the left side of the "tab list" button

fwiw, I don't see this on windows (and http://lxr.mozilla.org/mozilla1.8/source/toolkit/themes/winstripe/global/icons/tab-arrow-start-bkgnd.png appears to be properly transparent.) yves, can you attach a screen shot of what you are seeing?

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1b2) Gecko/20060825 BonEcho/2.0b2 ID:2006082504 Kubuntu 6.06

I've seen things like this on Linux too, both in 2.0 (the corners of the tab scroll buttons) and 1.5 (the tab close button). I suspect a Linux-only XUL bug or something.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1b2) Gecko/20060828 BonEcho/2.0b2 ID:2006082804

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1b2) Gecko/20060828 BonEcho/2.0b2 ID:2006082804

myk, do have cycles to help me with this linux issue?

Yup, looking...

You should definitely talk to mwu about this. I strongly suspect the cause of this (both in 2.0 and 1.5) is the accessibility-related color changes for toolbarbutton hover that he's been considering ripping out.

Indeed, mwu says that beltzner and mconnor have decided not to support high-contrast OS themes in the default browser theme. Instead, we'll be creating a separate high-contrast browser theme for those users who use a high-contrast OS theme. So if we don't have to support high contrast in the default theme, then the fix for this bug is the very simple one-line patch in bug 349055, attachment 235543 [details] [diff] [review], which just removes the OS-specified background color from all toolbar buttons.

This bug is fixed by the patch used in bug 349055. *** This bug has been marked as a duplicate of 349055 ***