Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
An alternative colour scheme to the original seamless pattern.
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
Number five from the same submitter, makes my job easy.
Source Dima Shiper
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
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