Seamless Green Tile Background
Source V. Hartikainen
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Prismatic Hypnotic Pattern No Background
Source GDJ
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
A seamless pattern formed from miutopia's cakes on a tablecloth.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
This is sort of fresh, but still feels a bit old school.
Source Martuchox
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Sharp pixel pattern, just like the good old days.
Source Paridhi
As the original image 's page size is too large for its image size, I remixed it.
Source Yamachem
Alternative colour scheme to the original.
Source Firkin