When hovering over a ruby element, overlays a large version for easier reading
Often times when reading something with ruby text (e.g. Japanese with furigana), the ruby text is too small to read easily.
This script will show you an enlarged version of any <ruby> element on a website, when hovering over it with the mouse while holding the Ctrl key (default).
At the top of the script file there are a few consts, which allow you to customize the behaviour of the script. Including which key is used for activating the script.