Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Green Background Pattern
Source V. Hartikainen
Inspired by a 1930s wallpaper pattern I saw on TV.
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
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin