qTox/themes/default/centralWidget/centralWidget.css

QLabel
{
    color: @mainText;
}

QLineEdit
{
    color: @mainText;
}

QTextEdit
{
    color: @mainText;
}

QSpinBox, QDoubleSpinBox
{
    color: @mainText;
} 

QListView
{
    color: @mainText;
}