The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Classic vertical lines, in all its subtlety.
Source Cody L
Used the 6th circle pattern designed by Viscious-Speed to create a print that can be used for card making or scrapbooking. Save as a PDF file for the best printing option.
Source Lovinglf
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Background formed from the original with an emboss effect
Source GDJ
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. Version with black background.
Source Firkin
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
Seamless pattern inspired by a drawing on Pixabay. To get the tile this is formed from, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
Abstract Ellipses Background Grayscale
Source GDJ
Gold Triangular Seamless Pattern No Background
Source GDJ
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo