This metal background pattern resembles a metal plate with rivets. Solid rivets on a metal plate.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Prismatic Geometric Pattern Background 2
Source GDJ
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
This is sort of fresh, but still feels a bit old school.
Source Martuchox
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
Neat little photography icon pattern.
Source Hossam Elbialy
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin