You can change this by installing gnome-tweak-tool, open it and go to theme and change icon theme to one that looks good to you, I use gnome(default).
I think the reason for this is that the default theme for ubuntu have the volume change notification with a much smaller icon and therefore it looks terrible with gnome 3 since it shows the icon much bigger. So it's more an issue that you are probably using a theme that is not meant to be blown up that big. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/878439 Title: sound volume notification icon is low sized To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-mono/+bug/878439/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
