So, on the outside we replaced like for like with approvals on materials, colors, etc. 

Granted, @Tamara Deering, borrowers need to find folks like the ones in this thread who understand the BRRRR strategy and have guidelines to work with that compliment it well.  9/10 mortgage brokers are in the dark on this type of thing and are dealing with more conservative guidelines. 

Then paint everything whatever color your heart desires!

I'd go with dark low pile/loop carpet. 

Some can tell you what color you can paint your house and what materials you can use on your roof. 

San Antonio is definitely out of the dark ages now and actually a spot people are noticing on a national stage.

You will be able to see the floor plans, colors and finishes that are selling right now.

I had a tenant once who would ask me almost monthly to put down new flooring for him because he didn't like the color of the current tile.

I'd consider it similar to using strong paint colors in a property, some will hate it, some will like it but using colors that almost everyone finds acceptable will appeal to the largest group.

It's 40 sqft of dark black granite, 1.25'' thick, $1700 installed.