CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
A seamless web texture of "green stone".
Source V. Hartikainen
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Redrawn based on a drawing in 'По Сѣверо-Западу Россіи' Konstantin Sluchevsky, 1897.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
A chequerboard pattern with a fruit theme. The fruits are from a posting by inkscapeforum.it.
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-brown.
Source Yamachem
Tiny circle waves, almost like the ocean.
Source Sagive
This is a seamless pattern which is derived from a flower petal image.
Source Yamachem
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
A seamless background pattern with impressed gray dots.
Source V. Hartikainen
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
A bit strange this one, but nice at the same time.
Source Diogo Silva