Background pattern 225 (colour 5) #2323
Blue CC 0Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
More Textures
Seamless Light Background Texture #1023
Stone CC BY-SA 3.0Seamless Light Background Texture.
Source V. Hartikainen
Background pattern 224 (colour 2) #2341
Colorful CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Subtle Striped Brown Background Pattern #940
Stripes CC BY-SA 3.0Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen
Prismatic Groovy Concentric Background 5 #465
Dark CC 0Prismatic Groovy Concentric Background 5
Source GDJ
Overlapping planks 6 #2570
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Tessellation 15 (colour 2) #2221
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
Dark Mosaic@2X #122
Dark CC BY-SA 3.0Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Prismatic Geometric Pattern Background 2 No Black #410
Noise CC 0Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Kaleidoscope Prismatic Abstract No Background@2X #807
Noise CC 0Kaleidoscope Prismatic Abstract No Background
Source GDJ
Background pattern 314 (colour 5) #1835
Pink CC 0The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Floral flourish #1816
Dark CC 0Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
Floral background 21 (colour) #1784
Dark CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Dark Wall@2X #818
Dark CC BY-SA 3.0Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Subtle White Mini Waves #1322
Unknow CC BY-SA 3.0Tiny circle waves, almost like the ocean.
Source Sagive
Fabric pattern 3 #2387
Fabric CC 0Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Cover Green #1283
Dark CC 0Zero CC tileable hard cover green book, scanned and made by me. CC0
Source Sojan Janso
Dark Denim 3@2X #596
Dark CC BY-SA 3.0This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Background pattern 271 #2058
Dark CC 0Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Elegant Grid@2X #317
Wall CC BY-SA 3.0This is a hot one. Small, sharp and unique.
Source GraphicsWall