setting radio button inner circle color to green

[anita.niharika@gmail.com]

QPalette pal= ui->Is_connected->palette();
pal.setColor(QPalette::Button, QColor (Qt::darkGreen));
ui->Is_connected->setPalette(pal);
ui->Is_connected->setEnabled(true);

QPalette pal= ui->Is_connected->palette();
pal.setColor(QPalette::Button, QColor (Qt::darkGreen));
ui->Is_connected->setPalette(pal);
ui->Is_connected->setEnabled(true);

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I tried using above piece of code to set the Radio button color. Looks like, it's not working.
You mentioned that to manipulate the QPalette directly for the radio buttons. Could you please elaborate on it.

Best Regads,
Anita