Imagine style example of QML 6 book

[qcoderpro]

I'm trying to deploy this example this way:

And this is my working directory:

The img forlder contains another folder imagine which includes four .png files:
applicationwindow-background
button-background.9
button-background-checked.9
button-background-pressed.9

When I run the project:

There's no style like shown in the book! I'm not sure if the problem is with the buttons.svg but can't see where it's used in the project neither in the link above or this one!!

[qcoderpro]

No idea how to fix the issue!?