Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.
Source V. Hartikainen
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
Remixed from a drawing in 'Canadian forest industries July-December', 1915
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Prismatic Chevrons Pattern 5 With Background
Source GDJ
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
A seamless web texture of "green stone".
Source V. Hartikainen
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
Classic 45-degree pattern, light version.
Source Luke McDonald
A seamless pattern formed from background pattern 102
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
From an image on opengameart.org shared by rubberduck.
Source Firkin