Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
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
Prismatic Abstract Background Design
Source GDJ
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
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
Black And White Floral Pattern Background Inverse
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
This background pattern contains worn out colorful stripes as a texture.
Source V. Hartikainen
Prismatic Abstract Geometric Background 5
Source GDJ
Seamless pattern made from a tile that can be obtained in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Derived from a drawing in 'Historiske Afhandlinger', Adolf Jorgensen, 1898.
Source Firkin
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Prismatic Groovy Concentric Background 2
Source GDJ
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
A seamless pale yellow paper background with a pattern of animal tracks.
Source V. Hartikainen