Recently I was introduced to the idea of using different colors as mnemonics for the tones. The idea intrigued me because I have what is known as grapheme-color synesthesia (see http://en.wikipedia.org/wiki/Grapheme-color_synesthesia ). Basically, I always "see" a certain color (that is, I am strongly reminded of it) when I see a particular letter or number or punctuation mark. For instance, it seems utterly obvious to me, though strange to others, that the letter A is red, that the number 9 is purple, and that the question mark is green. For whatever reason, all these English characters have their own associated colors with them in my head, and I find it helps make it easy for me to remember words, names and numbers.
However, as I have complained in the past, all the Chinese characters look pretty much black to me. To the extent that they have any associated colors at all, it is to the first letter of their Pinyin transliteration, but that connection isn't very strong in my head for most characters.
So of course I jumped right into the idea of assigning colors to each tone and remembering that color for each character, a technique which is apparently not unique to those of us with grapheme-color synesthesia. Many people are finding success with this technique just because they are visual learners, and for them remembering a color is easier than remembering a sound pitch or a number. Plus, it makes for easy mnemonics: to remember that the character 鞋 (shoe) is second tone, I just picture in my head a green shoe, since green is the color I chose to represent the second tone.
I think it would be great if Skritter users had the option of using this technique to remember the tones. Here's how it would work: a user could customize five colors to represent the five tones. Then, any Pinyin word with a tone mark would appear in the color of that tone. A Hanzi would also appear in its proper color once the user identified its tone, or if the user was not being tested on its tone.
What do others think of this idea?