GUI controls have to use the original graphic layout?

[JkWhoSaysNi]

I want to make a GUI profile, but i want to be able to define what part of the image to use for each part.

I don't want to use the default image as a template because I don't want things the sizes they are in that. I want bigger graphics.

Is there any way to define which part of the image is used for the border and the title bar, etc of a window.

I've attached an example of how i want the window to look. The bottom corners of the window cannot be done using the template graphic.