ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. Version with black background.
Source Firkin
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Dark blue concrete wall with some small dust spots.
Source Atle Mo
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-brown.
Source Yamachem
Prismatic Geometric Pattern Background No Black
Source GDJ
From a drawing in 'From Snowdon to the Sea. Striking stories of North and South Wales', Marie Trevelyan, 1895.
Source Firkin
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Looks like an old rug or a computer chip.
Source Patutin Sergey
Prismatic Abstract Geometric Background 5
Source GDJ
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
A seamless tessellation pattern. To get the tile this is formed from, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
Original minus the background
Source Firkin
Light and tiny, just the way you like it.
Source Rohit Arun Rao
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Prismatic Abstract Background Design No Black
Source GDJ
Remixed from an image that was uploaded to Pixabay by CatherineClennan
Source Firkin
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten