Tessellation 16 (colour 5) #2211
Yellow CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
More Textures
Background pattern 9 (B&W) #212
Dark CC 0Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Spiral background 2 #2245
Colorful CC 0Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Cross Scratches@2X #626
Paper CC BY-SA 3.0Subtle scratches on a light gray background.
Source Andrey Ovcharov
Olive Green Web Background Image #1335
Green CC BY-SA 3.0Seamless Olive Green Web Background Image
Source V. Hartikainen
Prismatic Snowflakes Pattern No Background #411
Light CC 0Prismatic Snowflakes Pattern No Background
Source GDJ
Background Patterns - Cerulean #245
Fabric CC 0f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Prurple Paper #1257
Paper CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Diamond Upholstery@2X #768
Diamond CC BY-SA 3.0A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Egg Shell #861
Light CC BY-SA 3.0It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Patterned metal plate 7 #2556
Metal CC 0From an image on opengameart.org shared by rubberduck.
Source Firkin
Floral pattern 6 #2461
Fabric CC 0A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
Diamond pattern (colour 9) #2269
Fabric CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Decorative divider 299 #1743
Dark CC 0From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
HIXS Evolution@2X #610
Dark CC BY-SA 3.0Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
Background pattern 215 (colour 4) #2368
Green CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Green Background With Leaves #1331
Green CC BY-SA 3.0It looks very nice I think.
Source V. Hartikainen