Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Colourful background achieved with gradient fills.
Source Firkin
A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
Source Firkin
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
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
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A brown metallic grid pattern layered on top of a dark fabric texture. It should look great when using as a tiled background on web pages, especially blogs.
Source V. Hartikainen
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Prismatic Hypnotic Pattern No Background
Source GDJ
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
From a drawing in 'A Guide to the Guildhall of the City of London', John Baddeley, 1898.
Source Firkin
This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
The following orange background pattern resembles a honeycomb.
Source V. Hartikainen
A light background pattern with diagonal stripes. Here's a simple light striped background for you.
Source V. Hartikainen
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamlessly tileable pink background texture.
Source V. Hartikainen