CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
A seamless pattern of leopard skin. It should look nice as a background element on web pages.
Source V. Hartikainen
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
Prismatic Groovy Concentric Background 3
Source GDJ
From a drawing in 'Codogno e il suo territorio nella cronaca e nella storia'', Gio and Giarella Cairo, 1897.
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
A seamless pattern formed from a rectangular tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Abstract Tiled Background Extended 11
Source GDJ
Someone was asking about how to achieve a fur pattern at #inkscape irc so tried to make a filter on it. Flood filled fractal noises rigged together. May someone find a good use for these.
Source Lazur URH
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
A bit strange this one, but nice at the same time.
Source Diogo Silva
Prismatic Basic Pattern 2 No Background
Source GDJ
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin