Background pattern 214 (colour 3) #2375
Green CC 0A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
More Textures
Seamless 3D Isometric Tessellation Pattern 2 #147
Light CC 0A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
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
Decorative divider 242 #2083
Dark CC 0From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Translucent Fibres #943
Light CC BY-SA 3.0The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Stripy checkerboard pattern 2 #1767
Dark CC 0Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Decorative divider 194 #2478
Dark CC 0From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
fishnet seamless pattern #2483
Grid CC 0The image is a seamless pattern of a fishnet.
Source Yamachem
Double Lined@2X #52
Stripes CC BY-SA 3.0Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Colourful background #2008
Colorful CC 0Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Subtle Carbon@2X #950
Dark CC BY-SA 3.0There are many carbon patterns, but this one is tiny.
Source Designova
Beige Paper@2X #84
Paper CC BY-SA 3.0This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Glossy Groove Stripe Pattern (Pale Orange) #967
Stripes CC BY-SA 3.0A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
Pyramid@2X #896
Light CC BY-SA 3.0Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall