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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 adjustColors(self, mode='dark'):
 """ Change a few colors depending on the mode to use. The default mode doesn't assume anything and avoid using white & black colors. The dark mode use white and avoid dark blue while the light mode use black and avoid yellow, to give a few examples. """

        rp = Game.__color_modes.get(mode, {})
        for k, color in self.__colors.items():
            self.__colors[k] = rp.get(color, color)