There are many carbon patterns, but this one is tiny.
Source Designova
From an image on opengameart.org shared by rubberduck.
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
This white background pattern has a seamless grunge style texture. Here's a white grunge style background pattern. Use it as a tiled background image on web sites or for other purposes.
Source V. Hartikainen
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Here's a seamless brown cork board background texture. Feel free to download or reshare if you like.
Source V. Hartikainen
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Here's a quite bright pink background pattern for use on websites. It doesn't look like a real fur, but it definitely resembles one.
Source V. Hartikainen
Number five from the same submitter, makes my job easy.
Source Dima Shiper
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin