That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
There are many carbon patterns, but this one is tiny.
Source Designova
Formed from decorative divider 184 in paint.net. Vectorised with Vector Magic.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
A classic dark tile for a bit of vintage darkness.
Source Listvetra
This metal background pattern resembles a metal plate with rivets. Solid rivets on a metal plate.
Source V. Hartikainen
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan