Derived from a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Abstract Ellipses Background Grayscale
Source GDJ
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
A light gray background pattern with seamless fabric-like texture and almost unnoticeable stripes.
Source V. Hartikainen
Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
This one is amazing, truly original. Go use it!
Source Viahorizon
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.
Source Atle Mo
Everyone needs some stardust. Sprinkle it on your next project.
Source Atle Mo
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ