Lead glass tile #2048
 Colorful  CC 0

Mostly just mucked about with the colours and made one of the paths in the lead frame opaque. The glass remains transparent.

Source Firkin

 More Textures
Dark [email protected] #321
 Wood  CC BY-SA 3.0

A beautiful dark wood pattern, superbly tiled.

Source Omar Alvarado

Decorative divider 253 #2064
 Dark  CC 0

From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.

Source Firkin

Background pattern 306 (colour 4) #1877
 Colorful  CC 0

Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.

Source Firkin

Colourful bricks pattern (no background) #265
 Noise  CC 0

Original minus the background

Source Firkin

Mirrored Squares #123
 Dark  CC BY-SA 3.0

Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.

Source Atle Mo

Chain background #2063
 Dark  CC 0

Remixed from a drawing in 'Canadian forest industries July-December', 1915

Source Firkin

Prismatic Isometric Cube Extra Pattern No [email protected] #789
 Light  CC 0

Prismatic Isometric Cube Extra Pattern No Background

Source GDJ

Background pattern 320 #1830
 Pink  CC 0

Formed by distorting a JPG from PublicDomainPictures

Source Firkin

Background pattern 255 (colour 2) #2140
 Brown  CC 0

Colour version of the original pattern.

Source Firkin

Decorative divider 208 #2366
 Dark  CC 0

Derived from elements found in a floral ornament drawing on Pixabay.

Source Firkin

Sponge A2-1 #2124
 Wall  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Diamonds Are [email protected] #184
 Diamond  CC BY-SA 3.0

Sharp diamond pattern. A small 24x18px tile.

Source Tom Neal

Fabric (Plaid)@2X #592
 Fabric  CC BY-SA 3.0

You know you can’t get enough of these linen-fabric-y patterns.

Source James Basoo

Vintage Clay Tile 2 #1459
 Unknow  CC 0

Gamedev - Roofs Textures. CC0 License.

Source Davit Masia

Leaded glass background (colour 3) #2052
 Colorful  CC 0

Seamless pattern the tile.

Source Firkin

Wavy background #2022
 Blue  CC 0

CC0 and a seamless pattern from a tile drawn in Paint.net .

Source SliverKnight

texture hearts pattern #242
 Noise  CC 0

A red heart background texture.

Source GDJ

Gravel #1367
 Unknow  CC 0

Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!

Source Linolafett

Cover Pink #1284
 Pink  CC 0

Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.

Source Sojan Janso

Prismatic Abstract Geometric Background [email protected] #793
 Noise  CC 0

Prismatic Abstract Geometric Background 5

Source GDJ

Cross [email protected] #48
 Dark  CC BY-SA 3.0

Nice and simple crossed lines in dark gray tones.

Source Stefan Aleksić

Subtle Dark Vertical #607
 Dark  CC BY-SA 3.0

Classic vertical lines, in all its subtlety.

Source Cody L

Background pattern 275 #2033
 Blue  CC 0

Drawn in Paint.net and vectorised in Vector Magic

Source Firkin

[email protected] #325
 Grid  CC BY-SA 3.0

Sometimes simple really is what you need, and this could fit you well.

Source Factorio.us Collective

Background pattern green #1944
 Green  CC 0

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

Source Firkin

Prismatic Dots Background [email protected] #508
 Noise  CC 0

Prismatic Dots Background 4

Source GDJ

Decorative divider #2001
 Dark  CC 0

From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.

Source Firkin

Background pattern 235 (colour 4) #2252
 Green  CC 0

To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.

Source Firkin