Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Same classic 45-degree pattern, dark version.
Source Luke McDonald
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
White circles connecting on a light gray background.
Source Mark Collins
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
You may use it as is, or modify it as you like.
Source V. Hartikainen
I’m not going to lie – if you submit something with the words Norwegian and Rose in it, it’s likely I’ll publish it.
Source Fredrik Scheide
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
A free repetitive background with a dark concrete wall like texture. This one may be used in dark web site designs.
Source V. Hartikainen
A background pattern with a look of rough fabric.
Source V. Hartikainen
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
From a drawing in 'Handbook of the excursions proposed to be made by the Lincoln Diocesan Architectural Society, on the 27th and 28th of May, 1857', Edward Trollope, 1857.
Source Firkin