It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
CC0 and seamless wellington boot pattern.
Source SliverKnight
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Green Background Pattern
Source V. Hartikainen
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso