Background pattern originally a PNG drawn in Paint.net
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
There are many carbon patterns, but this one is tiny.
Source Designova
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
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
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
Prismatic Hexagonalism Pattern No Background
Source GDJ
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ