Some ( ? ) texture-related items began to appear with inverted Red and Blue channel on android starting with 5.13.
Among others (see related bug), QQuickPaintedItem exhibit this behavior.
open the qml/tutorials/extending-qml/chapter3-bindings/
When run on desktop, the pie chart appear red, and turns into blue upon tap/click
When run on android, the pie chart appear blue and turns into red upon tap/click
The same issue (related to qquickpainteditem) is visible in the mapviewer example's copyright notice.
Note: QQuickPaintedItem is seemingly not the only one affected, as map tiles also show the same behavior.
Perhaps a RGB turned into a BGR somewhere (or vice-versa)?