'MDTexField Color when is normal kivy

I would like the color of MDTextField to be the same when it is disabled, but I don´t know how I can achieve it.

def escribir_sumandos(self, mas):
       
        for i in range(0,self.num_fil):
            for j in range(0,self.num_col):
                if (i == 0 and j >= (7-mas)) or (i == self.num_fil-1 and j >= (7-mas)):
                    self.texto = MDTextField(
                        input_type = "number",
                        halign ="center",
                        text_color = (1.0, 1.0, 1.0, 1),
                        
                    )


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