animated fill with currentColor
Discrete animation of the fill property.
The fill from a group is inherited for the two circles as currentColor.
This fill is animated with a begin of 2s and a dur of 12.5s with five values
in the blue range.
The small circle right below shows the current value of the group for comparison.
The large circle has its own animation of fill, beginning at 2s with a
dur of 15s with the values currentColor;rgb(0,200,240);currentColor.
After the active duration the value is frozen.
The small circle top left indicates the timing of the animation with
three values, black for currentColor, gray for the value in the middle.
The stroke of the large circle has the same appearance as the fill all
the time. But the animation is realised with simpler set animations.
A difference between the fill and the stroke of the large circle indicates
an error.