def get_back_what_to_disp(self):
        if (self.state.cursor_area == 'top' and not self.state.backprop_selection_frozen) or not self.state.back_enabled:
            return 'disabled'
        elif self.state.back_stale:
            return 'stale'
        else:
            return 'normal'
Whether to show back diff information or stale or disabled indicator
dataset/ETHPy150Open yosinski/deep-visualization-toolbox/caffevis/app.py/CaffeVisApp.get_back_what_to_disp