Pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Sometimes you just need the simplest thing.
Source Fabricio
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
This seamless light brown background texture resembles a wallpaper with vertical stripes. One way to use it is as a tiled background on web sites.
Source V. Hartikainen
One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.
Source Atle Mo
ZeroCC tileable mossy (lichen) stone texture, edited from pixabay. CC0
Source Sojan Janso
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel