Single color 4K backgrounds for Linux systems

You can not set sigle colors (black, white) in your Linux operating system? It is happens, because there is no possibility to do that.

How to set it up? You need to create a new graphics with single colors.

It takes a lot of time? Yes, but I have created 10 basic single-colored backgrounds for you. In JPG and PNG format depends on your needs.

All of images are 4K resolution (red, orange, yellow, green, blue, purple, grey, white, black, brown).