import PySimpleGUIQt as sg


layout = [
    [sg.Text('',key="spamDefault")],
    [sg.Button('Запустить'), sg.Button('Выйти')]
]
window = sg.Window('VimeTop | bot by nni', layout)

while True:
    event, values = window.Read()
    if event is None or event == "Выйти":
        break
    if event == "Запустить":
        window['spamDefault'].Update(f'Все данные верны', text_color='green');

window.Close()