It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Seamless Olive Green Web Background Image
Source V. Hartikainen
Otis Ray Redding was an American soul singer-songwriter, record producer, arranger, and talent scout. So you know.
Source Thomas Myrman
A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
Plywood Web Background background image for use in web design.
Source V. Hartikainen
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
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
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
This one is amazing, truly original. Go use it!
Source Viahorizon
Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
Abstract Tiled Background Extended 11
Source GDJ
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
This is a seamless pattern of a woody texture.The original image is here:https://pixabay.com/ja/users/ClassicallyPrinted-1302233/
Source Yamachem