This is the second script from the set of two that implement automatic filename and save path formatting for images being saved from tumblr based on image post tags. Requires the first script to function.
This script takes image tags for currently opened image from database, matches them against the folder database provided by user and figures out where you will most likely want to save the image and under which filename, saving you the trouble of doing it yourself. Manually navigating folder tree every time you save an image might be quite annoying if you have a large collection with lots of subfolders. Additionally the script is able to translate tags from one language to another using the same database of folders, and keep track of already saved images.
By default the userscript contains the database that I'm using myself: list of seiyuu names in japanese matched with folder names in English. You can change the database to follow your use case.