An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Abstract Tiled Background Extended 11
Source GDJ
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Continuing the geometric trend, here is one more.
Source Mike Warner
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
A comeback for you: the popular Escheresque, now in black.
Source Patten
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Sharp but soft triangles in light shades of gray.
Source Pixeden
The image depicts an edo-era pattern called "same-komon" or "鮫小紋"which looks like a shark skin.The "same" in Japanese means shark in English.
Source Yamachem
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin