I didn't mean that; look for example:
CheckBox is re-used from upstream, so there's no src/controls/CheckBox.qml in our repo
src/styles/CheckBoxStyle.qml contains empty place-holder

Now src/controls/Page.qml is in our repo, and contains styling within, so src/style/PageStyle.qml does not exist (same with Spinner).

I'm trying to get my head around where should the styling elegantly take place, hence the question.