Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
One more sharp little tile for you. Subtle circles this time.
Source Blunia
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Sometimes you just need the simplest thing.
Source Fabricio
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
This is the remix of "blue wave-seigaiha".The image depicts a seamless pattern of the front upper part of Japanese five yen coin which is used currently.This design represents a rice with ripe golden ears.
Source Yamachem
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
No relation to the band, but damn it’s subtle!
Source Thomas Myrman