How can I get background objects to play animations?

In one of my levels there’s a starry background and I want it to have like a sparkling type animation and the sprite editor lets me do this but as far as I can tell there’s no way to play it. Is this not a thing or am I just stupid?

Really sorry, but litterally not possible. Try to have your background in the game world with display order to one and have everything else display order 2 and above, and make sure this is not a solid object. Just for extra security, have enabled always true

you cannot give the background an animation but you can use user interface the only difference is that it will follow the screen