Background pattern 223 (colour 6) #2348
Yellow CC 0Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
More Textures
Escheresque Dark #1064
Dark CC BY-SA 3.0A comeback for you: the popular Escheresque, now in black.
Source Patten
Seamless tile 4 #1812
Red CC 0Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Mermaid divider #1970
Dark CC 0From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Prismatic Geometric Pattern Background 2@2X #785
Noise CC 0Prismatic Geometric Pattern Background 2
Source GDJ
Batthern@2X #325
Grid CC BY-SA 3.0Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Background pattern 323 (colour 4) #1809
Green CC 0Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Woven #290
Dark CC BY-SA 3.0Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
Background pattern 323 (colour 5) #1808
Noise CC 0Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Zig-zag pattern 4 #2415
Grid CC 0A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Dark Circles #306
Dark CC BY-SA 3.0People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
Background pattern 314 (colour 2) #1838
Green CC 0The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Sewn Stripes Pattern #964
Stripes CC BY-SA 3.0A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
Fake Luxury@2X #622
Diamond CC BY-SA 3.0Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Tree Bark #1182
Light CC BY-SA 3.0This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Prismatic Snowflakes Pattern 2 No Background #412
Light CC 0Prismatic Snowflakes Pattern 2 No Background
Source GDJ
Prurple Paper #1257
Paper CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Retina Dust #915
Light CC BY-SA 3.0First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
Pyramid@2X #896
Light CC BY-SA 3.0Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Background pattern 238 (colour 3) #2227
Blue CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Textured Paper #1130
Paper CC BY-SA 3.0You know I love paper patterns. Here is one from Stephen. Say thank you!
Source Stephen Gilbert