Owen Dare, from AU, who made the pic-to-weave program, has a free download that matches whatever your mouse cursor is over to the closest thread available. It's a damn useful tool.
Here's the download link: http://www.pictoweave.com/downloads/colorsearch-2-1_install.exe
Here is the how-to: https://www.youtube.com/watch?v=317PoyYiUsg