A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Abstract Ellipses Background Grayscale
Source GDJ
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Sharp but soft triangles in light shades of gray.
Source Pixeden
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Oh yes, it happened! A pattern in full color.
Source Atle Mo
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Black brick wall pattern. Brick your site up!
Source Alex Parker
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
From a drawing in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
From a drawing in 'A Guide to the Guildhall of the City of London', John Baddeley, 1898.
Source Firkin
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin