This is so subtle you need to bring your magnifier!
Source Carlos Valdez
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
A bit of scratched up grayness. Always good.
Source Dmitry
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Black brick wall pattern. Brick your site up!
Source Alex Parker
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Lovely pattern with splattered vintage speckles.
Source David Pomfret
The Grid. A digital frontier. I tried to picture clusters of information as they traveled through the computer.
Source Haris Šumić
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Remixed from a vector adapted from a jpg on Pixabay. The tile this is constructed from can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Number five from the same submitter, makes my job easy.
Source Dima Shiper
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra