White circles connecting on a light gray background.
Source Mark Collins
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:https://jp.pinterest.com/pin/500744052301423641/
Source Yamachem
This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
Alternative colour scheme for the original floral pattern.
Source Firkin
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Remixed from a drawing in 'Очерки Русской Исторіи въ памятникахъ быта', Petr Polevoi, 1879.
Source Firkin
Colorful Floral Background No Black
Source GDJ
Almost like little fish shells, or dragon skin.
Source Graphiste
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Prismatic Groovy Concentric Background 3 No Black
Source GDJ