Add glow effect around UI Layout

I have a simple white Layout above a pink background and I just want to add a glow effect around this white layout :

80559-glow.png

This is the properties of my layout :

Do you know how to achieve this ?

Easiest way is to make an image for the glow. Just in photoshop add outer glow. Forget what it’s called in GIMP, but I’m sure there is similar.

A quick but semi-expensive solution is to add an Outline component in your graphics.
Then use the Blur/Quick Blur image effect from Unity Standard assets. You may need to render it in a different camera though.

Advantages - you can control the size, color, amount of the blur just in the inspector. You can also use other sprites as well, other than a white rectangle.
Disadvantages - image effects uses more resources to render.