Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
Remixed from a PNG that was uploaded to Pixabay by gingertea
Source Firkin
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
U.S.-based National Fire Protection Association standard fire diamond for flagging risks posed by hazardous materials. The red diamond has a number 0-4 depending on flammability. The blue diamond has a number 0-4 depending on health hazard. The yellow has a number 0-4 depending on reactivity. the white square has a special notice, e.g OX for oxidizer.
Source Firkin
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin