Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
Colorful Floral Background No Black
Source GDJ
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
A simple bump filter made upon request at irc #inkscape at freenode. Made a screen capture of the making here: https://youtu.be/TGAWYKVLxQw
Source Lazur URH
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Used a cherry by doctormo to make this seamless pattern
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers