Prismatic Groovy Concentric Background
Source GDJ
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
The base gradient edited so now more details are rendered.
Source Lazur URH
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
A very dark asfalt pattern based off of a photo taken with my iPhone.
Source Atle Mo
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Tiny circle waves, almost like the ocean.
Source Sagive
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
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A free pink background pattern.
Source V. Hartikainen
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
Prismatic Abstract Background Design No Black
Source GDJ
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
Remixed from a drawing in 'Очерки Русской Исторіи въ памятникахъ быта', Petr Polevoi, 1879.
Source Firkin