A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Used a cherry by doctormo to make this seamless pattern
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
Prismatic Groovy Concentric Background 4
Source GDJ
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Background formed from the original with an emboss effect.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
A seamless pattern formed from cross 4. To get the original tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin