"Gray Stripes", Background Pattern #941
 Stripes  CC BY-SA 3.0

This one is quite simple in design, it consists of vertical stripes layered on top of a seamless texture.

Source V. Hartikainen

 More Textures
Floral background 10 #2046
 Yellow  CC 0

Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.

Source Firkin

Floral design 97 #1778
 Yellow  CC 0

From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.

Source Firkin

Part of Bayeux Tapestry 1 #2452
 Noise  CC 0

From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.

Source Firkin

Floral design 98 #1783
 Dark  CC 0

From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.

Source Firkin

Light [email protected] #696
 Grid  CC BY-SA 3.0

Submitted as a black pattern, I made it light and a few steps more subtle.

Source Andy

Paper yellowish 2 #2119
 Paper  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Background pattern 334 (colour) #1730
 Red  CC 0

Derived from an image that was uploaded to Pixabay by Kaz

Source Firkin

Real Carbon Fiber #286
 Carbon  CC BY-SA 3.0

Carbon fiber is never out of fashion, so here is one more style for you.

Source Alfred Lee

stone filter pack #154
 Stone  CC 0

This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.

Source Lazur URH

Tile-able Black Paper Background #1076
 Paper  CC BY-SA 3.0

A black tile-able background with paper-like texture.

Source V. Hartikainen

Little [email protected] #74
 Light  CC BY-SA 3.0

Subtle grunge and many little pluses on top.

Source Atle Mo

More Rough Wood 3 #1429
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Boiler Plate Rust #1644
 Metal  CC 0

Metal-Processed. CC0 License.

Source Unknow

Colorful Floral Background 3 #483
 Dark  CC 0

Colorful Floral Background 3

Source GDJ

Dark [email protected] #30
 Dark  CC BY-SA 3.0

A dark denim looking pattern. 145×145 pixels.

Source Atle Mo

Grid #974
 Gray  CC BY-SA 3.0

There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.

Source Dominik Kiss

Brushed Aluminum #1388
 Metal  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

Maze White #1046
 Light  CC BY-SA 3.0

Just like the black maze, only in light gray. Duh.

Source Peax

Background pattern 229 #2305
 Colorful  CC 0

To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Moss 3 #2106
 Unknow  CC 0

CC0 textures, backgrounds.

Source SliverKnight

"Animal Tracks", Background Pattern #1225
 Yellow  CC BY-SA 3.0

A seamless pale yellow paper background with a pattern of animal tracks.

Source V. Hartikainen

Wild [email protected] #989
 Dark  CC BY-SA 3.0

Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.

Source Badhon Ebrahim

Prismatic Curved Diamond Pattern 5 No [email protected] #544
 Diamond  CC 0

Prismatic Curved Diamond Pattern 5 No Background

Source GDJ

Pattern & Mix #1620
 Wall  CC 0

Fence. CC0 License.

Source Unknow

Background pattern 104 #561
 Dark  CC 0

Background pattern 104

Source Firkin

Floral pattern 6 (colour 2) #2460
 Fabric  CC 0

Alternative colour scheme for the original floral pattern.

Source Firkin

Paper 2 #2113
 Paper  CC 0

CC0 textures, backgrounds.

Source SliverKnight

"Polished Blue Stone", Seamless Web Texture #1052
 Stone  CC BY-SA 3.0

An abstract web texture of a polished blue stone (or does it look more like ice).

Source V. Hartikainen