Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Fix and cc0 to get the tile this is based on.
Source SliverKnight
Prismatic Groovy Concentric Background 2
Source GDJ
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by gingertea
Source Firkin
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
An alternative colour scheme for the original seamless texture formed from an image on Pixabay.
Source Firkin
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
A web texture of brown canvas. Will look great, when used in dark web designs.
Source V. Hartikainen
You guessed it – looks a bit like cloth.
Source Peax Webdesign
Prismatic Curved Diamond Pattern No Background
Source GDJ
Derived from a drawing in 'Elfrica. An historical romance of the twelfth century', Charlotte Boger, 1885
Source Firkin
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ