Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
A repeating background with dark brown stone-like texture and abstract pattern that looks like tree trunks.
Source V. Hartikainen
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Prismatic Abstract Line Art Pattern Background
Source GDJ
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
CC0 and seamless wellington boot pattern.
Source SliverKnight
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo