Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Subtle scratches on a light gray background.
Source Andrey Ovcharov
A blue gray fabric-like texture for websites. An yet another fabric-like texture. It has subtle vertical and diagonal stripes to it.
Source V. Hartikainen
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Same classic 45-degree pattern, dark version.
Source Luke McDonald
A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.
Source V. Hartikainen
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
I’m not going to lie – if you submit something with the words Norwegian and Rose in it, it’s likely I’ll publish it.
Source Fredrik Scheide
A gray background pattern with a texture of textile. Suits perfectly for web design.
Source V. Hartikainen
Number five from the same submitter, makes my job easy.
Source Dima Shiper
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
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
He influenced us all. “Don’t be sad because it’s over. Smile because it happened.”
Source Atle Mo
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry