Setting begin="click" on an <animateColor/> element means that the color animation should begin as the element targetted by the animation is clicked. WebKit currently disregards this value and starts the animation at document load time (t=0s).
Created attachment 5943 [details]
Testcase for begin="click" on <animateColor/>
This is a low visibilty issue in a partially implemented feature. Marking p4 (like all the other SVG bugs). No reduction needed, the test case is sufficient to demonstrate the issue.
Works fine in ToT, closing.