It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Prismatic Groovy Concentric Background 4
Source GDJ
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Just like the black maze, only in light gray. Duh.
Source Peax
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
8 by 8 pixels, and just what the title says.
Source pixilated
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin