Background pattern purple #1998
Colorful 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
Background pattern 234 #2259
Brown CC 0Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Circular frame 25 #1712
Dark CC 0Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Background pattern 225 #2327
Colorful CC 0Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Prismatic Curved Diamond Pattern 3 No Background #162
Diamond CC 0Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
3D Wood #1475
Wood CC 0Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
Skeletal Weave@2X #932
Light CC BY-SA 3.0Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Background pattern 213 (colour) #2411
Colorful CC 0A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. A version of the original with random colors.
Source Firkin
Background pattern 215 #2371
Brown CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
"Brown Stone Wall" #1026
Stone CC BY-SA 3.0A free seamless background texture that looks like a brown stone wall.
Source V. Hartikainen
Background pattern 277 (colour) #2031
Orange CC 0A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Background pattern 254 (colour) #2143
Colorful CC 0To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Background pattern 21 #205
Light CC 0A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
Checkered Pattern #322
Grid CC BY-SA 3.0Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Background pattern 105 #563
Dark CC 0A seamless pattern formed from background pattern 102
Source Firkin
Gun Metal@2X #361
Dark CC BY-SA 3.0With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Background pattern 328 (colour 2) #1800
Green CC 0To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Background pattern 215 (colour 3) #2369
Pink CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Floral background 21 (colour) #1784
Dark CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Polaroid@2X #188
Wall CC BY-SA 3.0Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
Background pattern blue #1949
Blue CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background@2X #542
Diamond CC 0Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Carbon Fiber Big@2X #327
Carbon CC BY-SA 3.0Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
P5@2X #1114
Light CC BY-SA 3.0Number five from the same submitter, makes my job easy.
Source Dima Shiper