Some of our developers would like to have an option to change the diff colors besides the stock gray, red, and green to indicate the type of diff. Some developers are color blind and so it's difficult to differentiate red and green colors. It would be nice if there were use settings to change that color or if there were "+" and "-" characters along the side of the file.
If there isn't an option for this in Crucible, then it might be a good feature to add.