A version without colours blended together to give a different look.
Source Firkin
Retro Circles Background 8 No Black
Source GDJ
Subtle scratches on a light gray background.
Source Andrey Ovcharov
f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
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
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
Alternative colour scheme for the original floral pattern.
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
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
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
A background tile of dark textile. Made this a long time ago and just now decided to publish it.
Source V. Hartikainen
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin