Cardboard Flat #961
Gray CC BY-SA 3.0Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
More Textures
Concrete Wall #77
Wall CC BY-SA 3.0Dark blue concrete wall with some small dust spots.
Source Atle Mo
Fruit on a branch #1968
Dark CC 0From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Decorative divider 286 #1824
Dark CC 0Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin
Lead glass tile #2048
Colorful CC 0Mostly just mucked about with the colours and made one of the paths in the lead frame opaque. The glass remains transparent.
Source Firkin
Overlapped wood 2 #2568
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Debut Dark #1014
Dark CC BY-SA 3.0Same classic 45-degree pattern, dark version.
Source Luke McDonald
Prismatic Snowflakes Pattern 3 No Background #413
Light CC 0Prismatic Snowflakes Pattern 3 No Background
Source GDJ
Tessellation 15 (colour 4) #2219
Green CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Decorative divider 229 #2151
Dark CC 0From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Dark Denim #372
Dark CC BY-SA 3.0Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten