The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
One week and it's Easter already. Thought I would revisit the decorated egg contest at inkscape community: http://forum.inkscapecommunity.com/index.php?topic=118.0
Source Lazur URH
Prismatic Hexagonalist Pattern No Background
Source GDJ
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
From a drawing in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
Same classic 45-degree pattern, dark version.
Source Luke McDonald
From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.
Source Firkin
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Might not be super subtle, but quite original in its form.
Source Alex Smith
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
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
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova