Light and tiny, just the way you like it.
Source Rohit Arun Rao
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
A seamless paper background colored in pale yellow.
Source V. Hartikainen
A seamless pattern formed from miutopia's cakes on a tablecloth.
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Continuing the geometric trend, here is one more.
Source Mike Warner