Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
A free grid paper background pattern for using on web sites.
Source V. Hartikainen
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
The image depicts a seamless pattern of a snow crystal.I referred to a book called ”sekka-zusetsu” or "雪華図説" which means an illustrated explanation about snow crystals.This book was published in 1832 (天保3年) or Edo period.For more about "雪華図説",see here:dl.ndl.go.jp/info:ndljp/pid/2536975
Source Yamachem
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Green Background Pattern
Source V. Hartikainen
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Zero CC tileable cork floor, photographed and made by me. CC0
Source Sojan Janso
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
ZeroCC tileable mossy (lichen) stone texture, edited from pixabay. CC0
Source Sojan Janso