Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
8 by 8 pixels, and just what the title says.
Source pixilated
Looks like an old wall. I guess that’s it then?
Source Viahorizon
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-brown.
Source Yamachem
A pattern formed from repeated instances of corner decoration 8. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
emixed from a JPG that was uploaded to Pixabay by Kyotime
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.
Source V. Hartikainen