The font or background color of the table widget does not change.

[cazador4980]

If the theme is not applied, the code below will be applied.
'setForeground(0, 0, 255)'
It does not apply when the theme is applied.
How can I solve this problem?

[JohanRain]

the same problem

[YeisonCardona]

Hi @cazador4980 and @FoolAsphel

If you mean about change theme features, it can be done by changing the stylesheet and add custom-stylesheets.

After apply_stylesheet()

stylesheet = app.styleSheet()
app.setStyleSheet(stylesheet + "QTableView {background-color: #0000ff;}")

The stylesheet can also be changed on runtime by:

stylesheet = app.styleSheet()
with open('custom.css') as file:
    app.setStyleSheet(stylesheet + file.read().format(**os.environ))