From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Prismatic Abstract Background Design No Black
Source GDJ
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
The classic notebook paper with horizontal stripes.
Source Are Sundnes
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
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
A dark metal plate with an embossed grid pattern and a bit of rust. Here's a dark metal plate texture for use as a tiled background on web pages.
Source V. Hartikainen
Prismatic Curved Diamond Pattern No Background
Source GDJ
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
This seamless light brown background texture resembles a wallpaper with vertical stripes. One way to use it is as a tiled background on web sites.
Source V. Hartikainen
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ