Has anyone considered using vivid colors in the rooms of agitated dementia patients?

Moxie, that's a good article. Thanks. I took an online course on Alzheimer. It was very basic but there were lots of videos, articles, etc.... When I read the article you referenced, I remember on the online course how the dementia patient at home kept having problems using the portable toilet. They showed us a photo of it leaning against the wall. The thing is, the wall is white, the portable toilet was white. If you no longer have depth perception, the white toilet blends into the wall. So what they did was draw on the wall a black outline of the toilet shape. When done, the toilet was so obviously there at the wall. They gave several other examples but I forgot the others.

So, Veronica, with the bright colors, it Might disorient the dementia patient. Too much visuals to look at, confuse them. I need to check my notes, though. Yeah, I took lots of handwritten notes!

I know in jails they use soft colors to keep the inmates calm.

This article talks about that:
psychcentral/lib/improving-alzheimers-and-dementia-care-environmental-impact/00013182

Shocking pink and bright orange are Warm colors, not necessarily calming ones. Notice nursing homes use contrast: pale walls but dark furniture. Carpets with a pattern to help depth perception. Contrasting handrails, contrast in color from one area to the next. It makes things easier to see and distinguish from the background.