Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Prismatic Abstract Line Art Pattern Background
Source GDJ
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Oh yes, it happened! A pattern in full color.
Source Atle Mo
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin