Diamond pattern (colour 3) #2283
Green CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More Textures
Beechwood #1295
Wood CC 0ZeroCC tileable beechwood wood texture, generated in Neo Texture Edit by me. CC0
Source Sojan Janso
Fabric of Squares@2X #1096
Light CC BY-SA 3.0As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Leafy pattern grass and green #1966
Green CC 0Remixed from a drawing in 'Jezebel's Daughter', Wilkie Collins 1880
Source Firkin
Prismatic Geometric Pattern Background No Black #408
Noise CC 0Prismatic Geometric Pattern Background No Black
Source GDJ
Background pattern 227 (colour 2) #2313
Blue CC 0A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Rice Paper #3@2X #1188
Paper CC BY-SA 3.0Oh yes, it happened! A pattern in full color.
Source Atle Mo
Tex2res5 #725
Fabric CC BY-SA 3.0Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Whitey@2X #110
Light CC BY-SA 3.0A white version of the very popular linen pattern.
Source Ant Ekşiler
Background pattern 235 (colour 3) #2253
Pink CC 0To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Absurdity@2X #826
Light CC BY-SA 3.0Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Background pattern 315 (colour 5) #1841
Yellow CC 0The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Inflicted@2X #118
Grid CC BY-SA 3.0Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Diagmonds@2X #337
Dark CC BY-SA 3.0Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
Abstract Ellipses Background Grayscale #378
Dark CC 0Abstract Ellipses Background Grayscale
Source GDJ
Leafy pattern #1971
Green CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Small Crosses@2X #116
Stripes CC BY-SA 3.0Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Abstract Water Texture (Seamless) #890
Water CC BY-SA 3.0An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
Psychedelic #745
Gray CC BY-SA 3.0Geometric triangles seem to be quite hot these days.
Source Pixeden
Dark Concrete Wall #1193
Concrete CC BY-SA 3.0A free repetitive background with a dark concrete wall like texture. This one may be used in dark web site designs.
Source V. Hartikainen