Dark sky rules in the Village
The Village at Castle Pines calls itself a dark sky community. Adding exterior lighting needs Design Review Committee approval, through your sub-association first. Its lighting guidelines ban floodlighting a house, even temporarily, and lighting trees, and call colored lights “not supportive” of the Village’s natural character. They don’t mention holiday strands, so ask the DRC before you plan a display.
Source: The Village at Castle Pines, Design Review, Castle Pines Homes Association, Exterior Lighting Design Guidelines