What is the purpose of an indexTags setting of Group\:Work

[haggis999]

Hi Simon,
I remember you warning me back in Sep 2013 not to modify the MinimServer configuration file in a text editor. At the time, my response was "I have never edited this file directly and have always used your two properties dialogue boxes". That remains the case.

What is it that makes you think I have directly edited the config file? For the sake of argument, let us assume that my memory in Sep 2013 was flawed and I had forgotten some previous brief illicit editing attempt. How would I fix that?

I had checked your User Guide before creating this thread, but failed to find anything to explain the use of backslashes in configuration settings. Why is a backslash required before the colon in Group\:Work, but not before the other colons in my indexTags settings or the colon in my aliasTags setting?