Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
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
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
A seamless texture of worn out "cardboard".
Source V. Hartikainen
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A seamless pattern formed from miutopia mug remixes on a tablecloth.
Source Firkin
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A bit of scratched up grayness. Always good.
Source Dmitry
White circles connecting on a light gray background.
Source Mark Collins
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
This is sort of fresh, but still feels a bit old school.
Source Martuchox
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
A very dark asfalt pattern based off of a photo taken with my iPhone.
Source Atle Mo
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
This is a remix of "flower seamless pattern".I rotated the original image by 90 degrees.This is a seamless pattern of flowers.These horizontal wavy lines are one of Edo patterns which is called "tatewaku or tachiwaku or 立湧" that represents uprising steam or vapor.
Source Yamachem
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Colourful background achieved with gradient fills.
Source Firkin
From an image on opengameart.org shared by rubberduck.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso