Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Prismatic Abstract Background Design
Source GDJ
Might not be super subtle, but quite original in its form.
Source Alex Smith
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
One week and it's Easter already. Thought I would revisit the decorated egg contest at inkscape community: http://forum.inkscapecommunity.com/index.php?topic=118.0
Source Lazur URH
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Sometimes you just need the simplest thing.
Source Fabricio
The Grid. A digital frontier. I tried to picture clusters of information as they traveled through the computer.
Source Haris Šumić
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.
Source Firkin
The image is a seamless pattern of a fishnet.
Source Yamachem
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec