MODERATORS NOTE: This effect is incompatible with Paint.NET 4.x.
Please use 'Fill From Clipboard' as an alternative.
https://forums.getpaint.net/topic/113220-boltbaits-plugin-pack-for-pdn-v41-and-beyond-updated-september-22-2018/
This addin fills the current image with a tiled version of another image.
Just copy an image to the clipboard, create a new image that is larger than the first, and run the addin.
For example, start with something like this:
And the tiled version could look like this:
It can be useful for creating textures, or patterned backgrounds.
The addin is attached to this post, and the source code is available here:
http://dan9298.blogspot.com/2008/11/tile-fill-addin.html
TileFillFromClipboard.zip