Sharp pixel pattern, just like the good old days.
Source Paridhi
A seamless pattern formed from a sports car on clker.com. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
Zero CC tileable ground cracked, crackled, texture, made by me.
Source Sojan Janso
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
A simple bump filter made upon request at irc #inkscape at freenode. Made a screen capture of the making here: https://youtu.be/TGAWYKVLxQw
Source Lazur URH
Background formed from the original with an emboss effect
Source GDJ
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Continuing the geometric trend, here is one more.
Source Mike Warner
Prismatic Geometric Pattern Background
Source GDJ
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Geometric triangles seem to be quite hot these days.
Source Pixeden
Seamless Olive Green Web Background Image
Source V. Hartikainen
Sharp but soft triangles in light shades of gray.
Source Pixeden
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Looks like an old rug or a computer chip.
Source Patutin Sergey