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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def palette_font_and_background_color_toggled(self, settings, key, user_data):
 """If the gconf var use_palette_font_and_background_color be changed, this method will be called and will change the font color and the background color to the color defined in the palette. """

        self.settings.styleFont.triggerOnChangedValue(self.settings.styleFont, 'palette')