A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin
A background pattern with a look of rough fabric.
Source V. Hartikainen
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
I’m not going to use the word Retina for all the new patterns, but it just felt right for this one. Huge wood pattern for ya’ll.
Source Atle Mo
Dark blue concrete wall with some small dust spots.
Source Atle Mo
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen
Textured Red Brown Plastic, Free Background Pattern. Although there's already enough plastic in our lives, let's bring it to the web too.)
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
This one is amazing, truly original. Go use it!
Source Viahorizon
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine