While no cycle is exactly the same, they are fueled by the same human activities and psychology.

Poor people live in those areas and are generally minorities, people of color.

.- Wall color: light gray, satin gloss- Trim color: natural white, semi gloss- Trim type: 6" baseboard- Counter: Quartz, eased edge (https://www.lowes.com/l/quartz-countertops.html), $44sqft "A" class, gray--forget the name, or the beige (Tina really needs to go the Lowes and look at all pieces together.- Backsplash: Picked out already.

I might add a bit more colorful artwork on the walls here and there. 

Don't worry if the tiles match, just use a colored tile as an accent.

It ain't much and it wouldn't pay to repaint the room they stayed in, but the psychological effect is present and that works.

As a deep-seated cultural prejudice, I don't like living in places where the ceilings are not flat white -- there's a saying where I'm from that only palaces and bordellos have colored ceilings.

The flooring color should not matter to you as the owner, unless it is crazy like pink carpet..

Hard to describe but imagine a very busy piece of stationary with colorful shapes and starbursts that then had text printed over it.

I think you could accent those colors well with the right colors.