To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
Prismatic Curved Diamond Pattern No Background
Source GDJ
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
Derived from elements found in a floral ornament drawing on Pixabay.
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
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin