@ixvizikil was able to find some pieces of a 3 x 3 grid background I had made some years ago. Here are all the pieces together. I got a bit carried away and made it into a minigame featuring Makuta. ←↑↓→ , WASD or Mouse to move. I made this background in Java with code, by using random noise to create the texture. It is actually based off of the floor in the hordika and visorak adverts from 2005, I included a reference image inside this project if you are curious. I have always labelled this as a Mangaia background all the same.