QFormLayout, background colour

[SPlatten]

I have finally got a scrolling form layout working properly and scrolling, thanks to @mpergand on this forum:

I now want to fill the background between the date/time stamp and the text label also in red, there is no setStyleSheet option on the form, how can I do this?

[SPlatten]

@SPlatten , solved, the layout was contained in a widget:

mpobjErrors->setStyleSheet("background-colour:#ff0000;");