How to set the background color of a ttk.Combobox

Question

I have a problem to set background color for Combobox using tkinter ttk with \'vista\' theme (I\'m using Python 3). I\'ve tried code from here ttk.Combobox glitch when state

Answer 1

This code below worked fine for me.It is important set the order of the parameters.

`

    style = ttk.Style()

    style.map('TCombobox', fieldbackground=[('readonly','white')])
    style.map('TCombobox', selectbackground=[('readonly', 'white')])
    style.map('TCombobox', selectforeground=[('readonly', 'black')])

    self.mycombo = ttk.Combobox(self.frame,textvariable=self.combo_var,
                                height=15,justify='left',width=21,
                                values=lista)

    self.mycombo['state'] = 'readonly' # Set the state according to configure colors
    self.mycombo.bind('<>',
                      lambda event: self._click_combo())

`