This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
Prismatic Curved Diamond Pattern No Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Colorful Floral Background 3 No Black
Source GDJ
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
A new one called white wall, not by me this time.
Source Yuji Honzawa
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen