Background pattern originally a PNG drawn in Paint.net
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Just like the black maze, only in light gray. Duh.
Source Peax
Prismatic Hexagonalist Pattern No Background
Source GDJ
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
Prismatic Abstract Geometric Background 4
Source GDJ
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki