Created attachment 137451 [details]
How this looks

Sample code:

```
    Kirigami.OverlaySheet {

        header: Kirigami.Heading { text: "This is awesome" }

        ListView {
            id: view
            implicitWidth: Kirigami.Units.gridUnit * 25
            clip: true
            model: [some model]

            section.property: "grouping"
            section.delegate: Kirigami.ListSectionHeader {
                width: view.width
                label: section
            }
            delegate: Kirigami.BasicListItem {
                width: view.width
                text: model.text
                subtitle: model.description
            }
        }
    }
```

Real-life example in https://invent.kde.org/plasma/discover/-/blob/master/libdiscover/backends/PackageKitBackend/qml/DependenciesButton.qml#L27

See attached screenshot for what this produces.