Sharp but soft triangles in light shades of gray.
Source Pixeden
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
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
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
It looks very nice I think.
Source V. Hartikainen