A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
A comeback for you: the popular Escheresque, now in black.
Source Patten
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
A seamless pattern formed from a square tile based on a jpg on Pixabay. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.
Source V. Hartikainen
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Abstract Tiled Background Extended 10
Source GDJ
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Geometric triangles seem to be quite hot these days.
Source Pixeden
A repeating graphic with ancient pattern. I came up with this name/title at last minute, so you may find that there is very little of ancientness in this pattern after all.
Source V. Hartikainen
A nice and simple white rotated tile pattern.
Source Another One
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers