A seamless pattern the starting point for which was a 'light rays' rendering in Paint.net.
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
A classic dark tile for a bit of vintage darkness.
Source Listvetra
This was formed by distorting an image of a background on Pixabay.
Source Firkin
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
Alternative colour scheme to the original.
Source Firkin
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
The original enhanced with some gradients.
Source Firkin
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
This one needs to be used in small areas; you can see it repeat.
Source Luca
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. A version of the original with random colors.
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin