Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.
Source Ractapopulous
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Abstract Tiled Background Extended 11
Source GDJ
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
Seamless Olive Green Web Background Image
Source V. Hartikainen
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A comeback for you: the popular Escheresque, now in black.
Source Patten
A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Just like the black maze, only in light gray. Duh.
Source Peax
Geometric triangles seem to be quite hot these days.
Source Pixeden
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen