Set AreaChart fill color

[darioenginius]

Hi all,
I have a problem setting fill color in AreaChart.
For Line, Bar and Scatter charts I use the colors function (simply return hex string color) and it works fine.
In Area Chart, I have the following error: Uncaught TypeError: props.colors.domain is not a function
If I try to comment the colors property it uses the default color and I don't get errors.
I tried to add colorAccessor function that always return 0, but nothing changed.
How I can change the fill color for Area Chart? And how do it if I need to add more series?
Thanks