Python: Simple Flashcard

from guizero import App, Text, PushButton

def reveal():
    b_reveal.hide()
    t_message1.text_color = "white"
    t_message2.show()


app = App(title='Simple Flashcard App', bg="blue", width=240, height=160)
app.text_color="yellow"
t_message1 = Text(app, text="GUI stands for")
t_message1.text_color = "yellow"
b_reveal = PushButton(app, command = reveal, text='Reveal answer')
t_message2 = Text(app, text="Graphical User Interface")
t_message2.text_color = "yellow"
t_message2.hide()
app.display()