Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
A grayscale fabric pattern with vertical lines of stitch holes.
Source V. Hartikainen
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Prismatic Geometric Pattern Background 2
Source GDJ
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Prismatic Geometric Pattern Background No Black
Source GDJ
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo