Set background color to ToggleButton

[Daniel Peñalba <dpenalba codicesoftware com>]

Hi, I'm writing a simple GTK# application trying to change the background color to a ToggleButton:

            ToggleButton firstButton = new ToggleButton ("Push me", targetColor);
            firstButton.ModifyBg (StateType.Active, targetColor);

However, the background color does not change when it's pushed.

Do you know how can I change the toggle's background color when the button is pushed?

Thanks in advance.