canvas item color


How can I set a canvas item's color without specifying the color name?

Well... I want to choose the color to set the item from a color picker...

In test-gnome there is something like "fill_color_rgba", but it is used
only in case the canvas is an antialiased canvas. I'm working with a normal
canvas, and I've tryed to use fill_color_rgba anyway... but it doesn't seem to

Can you help me?
Thanks in advance.

Ciao, Andrea

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