This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
Everyone needs some stardust. Sprinkle it on your next project.
Source Atle Mo
Dark blue concrete wall with some small dust spots.
Source Atle Mo
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-yellow.
Source Yamachem
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin