Number five from the same submitter, makes my job easy.
Source Dima Shiper
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Feel free to use this seamless background texture as a background on a web site. It's colored in a light pink color and is seamlessly tile-able.
Source V. Hartikainen
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
The tile can be had by selecting the rectangle in Inkscape and using shift+alt+i. Remixed from a drawing in 'Flowers of Song', Frederick Weatherly, 1895.
Source Firkin
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
This is the remix of an OCAL clipart called "Rain on Window" uploaded by "pagarmidna".Thanks.This is a seamless pattern of raindrops.
Source Yamachem
Prismatic Groovy Concentric Background 3
Source GDJ
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Prismatic Abstract Geometric Background 3
Source GDJ
A seamless texture of an abstract wall colored in shades of light orange brown.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Remixed from an image that was uploaded to Pixabay by KirstenStar
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Tiny circle waves, almost like the ocean.
Source Sagive