1191x670: Wallpaper - Black Abstract Polygons (w...

Add a thin, faint grey or blue line to the edges of the polygons to give them a "3D" or "technological" feel.

Since 1191x670 is a non-standard screen resolution, you might want to generate your own to ensure perfect sharpness: 1191x670 Wallpaper - Black Abstract Polygons (W...

The technical term for designs made of visible polygonal meshes. Add a thin, faint grey or blue line