Actually you can change the tool to meet your ctb file. you have control over every layer that ADT uses. Color, name, everything.
To adapt your ctb file, you need to know what thickness you want for each color YOU used to use. Red was ??, Blue was ??.
Then you take the new colors ADT uses, for instance 30 for walls, and you say, My walls used to be red, which was ?? thick, now 30 is going to be that thick.
Does that make sense?