A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Some dark 45 degree angles creating a nice pattern. Huge.
Source Dark Sharp Edges
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
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
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Prismatic Geometric Pattern Background No Black
Source GDJ
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Prismatic Snowflakes Pattern 3 No Background
Source GDJ
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
From a drawing in 'Handbook of the excursions proposed to be made by the Lincoln Diocesan Architectural Society, on the 27th and 28th of May, 1857', Edward Trollope, 1857.
Source Firkin
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin