A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This seamless pattern consists of a blue grid on a yellow background.
Source V. Hartikainen
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Subtle scratches on a light gray background.
Source Andrey Ovcharov
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
Kaleidoscope Prismatic Abstract No Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Prismatic Abstract Line Art Pattern Background
Source GDJ
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Prepared mostly as a raster in Paint.net and vectorised.
Source Firkin