Well, I have a different take.
I think an interior decorator is propsing this and making it look like a religious thing but really it is a matter of taste.
We have fought over Christmas tree lights for 40 years. I like plain white tiny lights and husband and kids want those big red and green victorian lights. I think they are garish.
So I think some decorator wants Ft Collins to have tasteful little white inoffensive lights and not look garish.
That is my take and I know I am probably wrong.
I'm with you. Don't tell them, but white lights represent the clear light of God. (To my family, anyway.)