Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Prismatic Groovy Concentric Background 2
Source GDJ
Prismatic Geometric Pattern Background No Black
Source GDJ
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-yellow.
Source Yamachem
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless texture of an abstract wall colored in shades of light orange brown.
Source V. Hartikainen
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
The classic notebook paper with horizontal stripes.
Source Are Sundnes
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso