Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Prismatic Groovy Concentric Background 3
Source GDJ
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Tile-able Dark Brown Wood Background. Feel free to use it as a background image in your designs or somewhere on the web. By the way, the color seems to be close to Coffee Brown.
Source V. Hartikainen
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin