Number five from the same submitter, makes my job easy.
Source Dima Shiper
Lovely pattern with splattered vintage speckles.
Source David Pomfret
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
This one needs to be used in small areas; you can see it repeat.
Source Luca
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
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
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
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
Prismatic Abstract Geometric Background 4
Source GDJ
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
A seamless paper background colored in pale yellow.
Source V. Hartikainen