Repeating Background at an angle

Hello, new to the forums and GMS2.

I'm working on a mobile game prototype where a background scrolls as the player walks and kills/encounters more enemies. I've found the option to use horizontal tile settings, and also background_hspeed which would both work, except my background is angled and moves from top right to top left. I'm looking to make this repeat. Here is an image of the game view:

Please let me know if I need to clarify what I'm trying to do. I've also thought of using a tileset to do this or making the background an object.

Thank you for the help!



if you found background_hspeed.. makes sense there should be a background_vspeed.

if both of these are the same speed.. it would move at a 45^ ;o)