From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Fix side and a seamless pattern formed from circles.
Source SliverKnight
Prismatic Polka Dots 3 No Background
Source GDJ
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
A version without colours blended together to give a different look.
Source Firkin
Prepared mostly as a raster in Paint.net and vectorised.
Source Firkin
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
A nice and simple white rotated tile pattern.
Source Another One
CC0 and seamless wellington boot pattern.
Source SliverKnight
The following orange background pattern resembles a honeycomb.
Source V. Hartikainen
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
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
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin