animateColor
animateColor for a path is tested using different color values and inherit for fill,
this inherits #600 or none. The animation is restarted several times and
additive="sum" is specified, what is not applicable and has to be ignored,
if the inherited value is none. If the blue button top left is clicked or activated,
the inherited fill is set to none for 20s, else is #600.
stroke has the same animation in the case, the button is not clicked or activated.
A small centered circle has the same animation in the case, the button is clicked
or activated.
A problem occurs, if the button is clicked or activated, while the animation runs,
because at the begin the viewer cannot know, whether the animation should be
additive or not. Therefore the viewer may update the behaviour when the inherited
value is set for the rest of the current turn. Other solutions are maybe possible too,
this is currently not specified.