I like only a narrow subset of how I can look, and get annoyed when people tell me to be more flexible.
If that's true it's likely that it you could be more specific then pants>skirts and khaki/colorful.
On the other hand those seems pretty straightforward rules for your relatives. Don't gift her skirts and make sure it's either khaki or colorful.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.