A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Snap! It’s a pattern, and it’s not grayscale! Of course you can always change the color in Photoshop.
Source Atle Mo
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Dark blue concrete wall with some small dust spots.
Source Atle Mo
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin
Geometric triangles seem to be quite hot these days.
Source Pixeden