TextArea QML on ubuntu has transparent background (on mac it is white)

shemeshg

On mac it is all correct (has white background by default)

No problem onUbuntu for TextInput Qml
(TextInput has white background) so I can say the problem is specific to

I did as a walk around.

        TextArea {
            background: Rectangle {
                color: "white"
            }
        }

But then "Dark mode" will look bad on Mac
(On Dark mode it will become white text on white background)