I have read in a few places that the Classics line that came with case hardened colored frames were not standard method to get the colors. Instead they used a chemical process that while it makes great coloration but it also makes for an easy to remove coloration if you aren't careful. I only know that the colors on decades old triggers only come off with harsh cleaners or something abrasive and Hoppes #9 isn't near harsh enough and it took a green scour pad to scuff the remaining coloration off a trigger that someone decided they didn't like. So if this is indeed true that the Classics had a good looking but easy to ruin finish with the coloration, what are you supposed to use to clean the gun and maintain the colors from fading???

Is there any truth to any of this or am I falling for more interwebz rumors???