When I use the following syntax:

qml.files = $$files(*.qml)
qml.prefix = /qml
RESOURCES += qml

images.files = $$files(*.png)
images.prefix = /images
RESOURCES += images

The end result is this:

Which means that I need to resize the projects pane in order to see which file it's referring to. I think the absolute path of the generated qrc file is not important information for a user (it's available in the tooltip if needed), and it would be better to show just the file name, as occurs for regular .qrc files:

For example, in the case of the snippet above, it would be qmake_qml.qrc and qmake_images.qrc.