Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Seamless Green Tile Background
Source V. Hartikainen
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
More in the paper realm, this time with fibers.
Source Jorge Fuentes
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha