Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
From a drawing in 'An Old Maid's Love. A Dutch tale told in English', Maarten Maartens, 1891.
Source Firkin
Fix and cc0 to get the tile this is based on.
Source SliverKnight
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
This is a more minute version of "fishnet 01".The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
This is a hot one. Small, sharp and unique.
Source GraphicsWall
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
Original minus the background
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
The image depicts polka dot seamless pattern.
Source Yamachem
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous
Redrawn based on a drawing in 'По Сѣверо-Западу Россіи' Konstantin Sluchevsky, 1897.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia