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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 _init_style(self):
 """ Inits style options """

        self._background = QtGui.QColor('white')
        self._foreground = QtGui.QColor('black')
        self._whitespaces_foreground = QtGui.QColor('light gray')
        app = QtWidgets.QApplication.instance()
        self._sel_background = app.palette().highlight().color()
        self._sel_foreground = app.palette().highlightedText().color()
        self._font_size = 10
        self.font_name = ""