A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
This is a seamless pattern which is derived from a flower petal image.
Source Yamachem
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
A free seamless texture of reptile skin colored in a dark brown color. As always, you may use it as a repeated background image in your web design works, or for any other purposes.
Source V. Hartikainen
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
A seamless texture of worn out "cardboard".
Source V. Hartikainen
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Prismatic Polyskelion Pattern No Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Prismatic Groovy Concentric Background 3
Source GDJ
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin