Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
A background pattern with green vertical stripes. A new striped background pattern. This time a green one.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Seamless pattern made from a tile that can be obtained in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
A nice and simple white rotated tile pattern.
Source Another One
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
You guessed it – looks a bit like cloth.
Source Peax Webdesign
The tile this is based on was adapted from an image that was uploaded to Pixabay by frolicsomepl. It can be had in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Abstract Background Design
Source GDJ
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
This seamless web background texture looks like gray stone. It's great for using as a background image on web pages, or on some of their elements. Anyway, I hope you will find use for it.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin