No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Just like the black maze, only in light gray. Duh.
Source Peax
Continuing the geometric trend, here is one more.
Source Mike Warner
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
The image depicts a seamless pattern of a snow crystal.I referred to a book called ”sekka-zusetsu” or "雪華図説" which means an illustrated explanation about snow crystals.This book was published in 1832 (天保3年) or Edo period.For more about "雪華図説",see here:dl.ndl.go.jp/info:ndljp/pid/2536975
Source Yamachem
A seamless pattern formed from background pattern 102
Source Firkin
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Old China with a modern twist, take two.
Source Adam Charlts
A version without colours blended together to give a different look.
Source Firkin