What's the meaning of different colors in the detected code?

[YiMingshan]

After using JPlag to detect some programs, I thought the the different colors in the detected code stand the different degree of code similarity. Is that rihgt? If it is right, please tell me the details. Thanks!

[salmanshokha]

Similar passages on both files are marked with the same color. But there can be large number of similar passages. So, I think different colors are used to represent the large many variety of passages, not the degree of code similarity. For instance, in one case I found that red and green are used to mark 10 and 18 similar tokens respectively whereas in another I discovered red and green are used to mark 10 and 8 tokens respectively.

Also, you may take a look at the help file provided by JPlag.