Skritter currently has a feature that allows us to see if we've already studied a word when we import a set of characters, or make a list of new words/characters.
The only problem with this feature is words that have multiple character that have been previously studied aren't currently labeled/colored in any way.
For example, if I've already studied the characters 电and 脑, and then import a list of characters that has the word 电脑 in it, it would be nice if there were some sort of indication in the contents section of that word list to show that both of the characters in the word for "computer" have been studied, so that I don't spend time drawing characters I've already leart, and move on to other things.