^ So having fun with ones clothes is just too frivolous for the 24th century but going to the holodeck to be Sherlock Holmes or a hard-boiled detective isn't? Getting dressed for the part, too? Right.
Well, all I can say is, if I didn't have to worry about money, I'd sure the heck have fun with my clothes. I do now, and I do have to worry about money.
Besides, even the clothes that weren't supposed to be bland were bland. I remember Beverly dressing up in a short cocktail-type dress (or whatever you'd call it in the 24th century) one time for an intimate dinner with Jean Luc, and it had a short flirty skirt and...and it was the color of dirt. And I remember that episode in which the entire crew loses its memory and Ro and Riker, since they've forgotten how much they annoy each other, discover that they have kind of a thing for each other, and Ro plants herself in Riker's bed, if I remember correctly, wearing a long gown that's - you guessed it - the color of dirt.
Of course both Beverly and Ro didn't look bad in the dirt-tan color, because it would take more than that to make either of them actually unattractive, but it was most certainly not the ideal color for either of them, nor anybody else that I can think of.
I strongly suspect that dirt-tan will never be a romantic color, even in the 24th century. My theory at the time the episodes originally aired was that somebody in wardrobe got a bunch of dirt-colored fabric on sale somewhere.