toolbar: adjust animation colors
Make the highlight more apparent - it seems we can't do animation-direction so I've made the highlight last longer by using two keyframes, since we cannot do the classic ping-pong animation and adjusting the ease-out - button gradient colors are still mostly hardcoded as no color ops available in css. :( https://bugzilla.gnome.org/show_bug.cgi?id=753728
parent
39f9de34