Wavy background #2018
Colorful CC 0CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
More Textures
Tex2res4 #717
Dark CC BY-SA 3.0Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Background pattern 310 #1862
Red CC 0Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Flourish 2 #2299
Dark CC 0From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Background pattern 245 (colour 6) #2187
Colorful CC 0This was formed by distorting an image of a background on Pixabay.
Source Firkin
Tessellation 11 (variant 3) #2536
Grid CC 0The original enhanced with one of Inkscapes's filters.
Source Firkin
Fence 7 #2576
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Satin Weave #1044
Light CC BY-SA 3.0Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
"Dark Brick Wall", Background Pattern #1024
Stone CC BY-SA 3.0Like the name suggests, this background image consists of a pattern of dark bricks. It may be an option for you, if you are looking for something that looks like a brick wall for use as a background on web pages. It's not a masterpiece, but looks pretty nice when is tiled.
Source V. Hartikainen
Brick & Red #1374
Wall CC 0Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Floral background #1980
Brown CC 0Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
Decorative divider 242 #2083
Dark CC 0From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Shattered #951
Gray CC BY-SA 3.0A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Checkered Pattern@2X #323
Grid CC BY-SA 3.0Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
"Green Stone", Seamless Web Texture #1050
Stone CC BY-SA 3.0A seamless web texture of "green stone".
Source V. Hartikainen
Wild Oliva@2X #989
Dark CC BY-SA 3.0Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Background pattern 207 (colour 2) #2464
Colorful CC 0A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
White carbon #11
Carbon CC BY-SA 3.0Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo