Using UI Raw Image how to I stretch to fit the screen?

HI It was pretty straight forward creating a fullscreen GUI with GUI texture, but what are the component settings to do this in the UI environment?

I cant seem to get a fullscreen raw image that stretches fill to the screen…and changes to also fill the screen if I resize it?

Haha simple as, but no clue and cant seem to find that page of the docs.

Thanks

There is a easy preset in the recttransform for filling the object to the parent rect size (what the screen size is when its directly under the canvas)

Play around with the the rectTranform preset and you will find it.
The preset are in the upper left corner of the rect transform.