Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i
Source Firkin
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
He influenced us all. “Don’t be sad because it’s over. Smile because it happened.”
Source Atle Mo
This is a seamless pattern of a woody texture.The original image is here:https://pixabay.com/ja/users/ClassicallyPrinted-1302233/
Source Yamachem
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Colourful background achieved with gradient fills.
Source Firkin
A seamless pattern formed from miutopia mug remixes on a tablecloth.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Continuing the geometric trend, here is one more.
Source Mike Warner
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
A floral background formed from numerous clones of flower 117.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
A free background pattern with abstract green tiles.
Source V. Hartikainen
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem