Background pattern 269 #2062
Dark CC 0A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
More Textures
Binding Light@2X #1137
Light CC BY-SA 3.0Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Background pattern 328 (colour 4) #1798
Green CC 0To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Light Gray #1203
Gray CC BY-SA 3.0Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Background pattern 221 #2347
Dark CC 0A seamless pattern formed from a tile made from ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Floral design 99 (colour) #1777
Green CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Decorative divider 232 #2148
Dark CC 0From 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
Psychedelic Geometric Background No Black #382
Noise CC 0Psychedelic Geometric Background No Black
Source GDJ
Prismatic Abstract Geometric Background 4 No Black@2X #442
Dark CC 0Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Zig-zag pattern #2418
Grid CC 0A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Tile-able Black Paper Background #1076
Paper CC BY-SA 3.0A black tile-able background with paper-like texture.
Source V. Hartikainen
Repeating Stone-Like Background (Dark Brown) #1056
Stone CC BY-SA 3.0A repeating background with dark brown stone-like texture and abstract pattern that looks like tree trunks.
Source V. Hartikainen
Dark Denim #372
Dark CC BY-SA 3.0Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Concrete Wall 3@2X #94
Light CC BY-SA 3.0All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Aged Grid Paper Background #1072
Paper CC BY-SA 3.0A seamless web background with texture of aged grid paper.
Source V. Hartikainen
Fake Luxury #621
Diamond CC BY-SA 3.0Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Background pattern 291 #1931
Dark CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Cartographer #749
Dark CC BY-SA 3.0A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Flying swan pattern #1978
Blue CC 0Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Background pattern 263 #2073
Pink CC 0Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin