Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Prismatic Abstract Geometric Background 4
Source GDJ
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Looks like an old rug or a computer chip.
Source Patutin Sergey
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
You know you love wood patterns, so here’s one more.
Source Richard Tabor
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
The original enhanced with some gradients.
Source Firkin
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Mostly just mucked about with the colours and made one of the paths in the lead frame opaque. The glass remains transparent.
Source Firkin