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<@U0F3291QE> I want to open a popup over a tab in a tabbed view so that the popup covers only the full height and width of the tab with a transparent background just like we have popups in a webpage, where everything in the background goes opaque. My problem is I am using a fragment view for my popup design. I am currently setting the height and width statically in the `onDock` method by using `setPrefSize` and `modal.x &amp; modal.y` for the positioning. Which doesn't work on different screen sizes. Is there any way so that the popup automatically assumes the height and width of the background tab?