Yeah… but it does. Perhaps you need to clarify what you’re trying to do. You’re asking for transparent images, but the screenshots imply you want a transparent label over a background image.
The segments that should be transparent are filled with white: Either the photo overlaps the other widgets or it leaves behind, it overlaps when we put it after others, it leaves behind when we put it first.
but i noticed something in one of the methods shown in your link, when we put an image with a canvas, after we are able able to add a text to that canvas in which the text gets the background of that the canvas so it works, if we are able to add scrollbars, text widgets and entries to canvases it can work