Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Abstract Tiled Background Extended 11
Source GDJ
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless background texture of old cardboard.
Source V. Hartikainen
Used a cherry by doctormo to make this seamless pattern
Source Firkin
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Remixed from a drawing in 'Очерки Русской Исторіи въ памятникахъ быта', Petr Polevoi, 1879.
Source Firkin
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks. https://cloaks.deviantart.com
Source Atle Mo
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
A textured orange background pattern with vertical stripes.
Source V. Hartikainen