Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Zero CC tileable seed texture, edited by me to be seamless from a Pixabay image. CC0
Source Sojan Janso
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Prismatic Abstract Geometric Background 4
Source GDJ
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Abstract Background Design
Source GDJ
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen
Here's a quite bright pink background pattern for use on websites. It doesn't look like a real fur, but it definitely resembles one.
Source V. Hartikainen
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
A seamless pattern formed from miutopia mug remixes on a tablecloth.
Source Firkin
This one is quite simple in design, it consists of vertical stripes layered on top of a seamless texture.
Source V. Hartikainen
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo