Rectangle with fill cutout showing background

Just wondering if this is possible.

I want to create a rectangle in a panel . The panel is a solid white color. The background of the app is a linear gradient. I want the rectangles fill to cut out the panels white background and show the apps linear gradient background.


What you’re asking about appears to be masking.

Currently, in Fuse we only have Mask, which uses an image for clipping. There is no built-in support for using arbitrary visual elements (panels, rectangles etc.) as masks as of now.