Split Swatches for the Build-Buy Catalog

You know how the Sims 2 had the swatches separated within each item? So you could, say, select the color of the wood for the item, then independently select the upholstery or countertop color? That. I want that for TS4. So much. 

Would it be a gargantuan amount of work to do that for the whole buy catalog? Absolutely. But it would give us so many more options and so much more flexibility in terms of item selection, and it would essentially multiply the entire catalog without adding any new meshes. At present, I cannot tell you how many times I've changed the whole color scheme of my build just because it's the only one that matches the wood color I want. But if the swatches were switched so that we could mix and match them a la TS2, it would fix that! No longer must our bedroom colors be dictated by the bedding! 

I would also love, love, love this for the build side of BB, where, for example, the window panes are separate from the frame colors, or the baseboards and wainscoting are separated from the paint or wallpaper. However, this is secondary to the Buy side of things, as that's where the bigger pain point is, in my opinion. 

Anyway, that's what I want. And since the most recent thread I could find on this general topic was from 7 years ago, it felt like it might be time for a fresh one. Thanks!