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Simple Light Control

in the script it shows that the light color is changing but the lights are not changing

That hasn't been my experience at all. Every ship I've seen, from survival or workshop, has had a different name for every light. You could get the same outcome with groups.

Group names are great when keeping names unique on a grid (as happens often with manual builds, suffixed with a number), but many prepackaged grids have uniform names for all lights of a specific type (specific example, the lunar rover has lights on each side that blink, both simply named "Interior Light", and lights over the front wheels named "Corner Light").

A group name option might be more appropriate. About the thumbnail, yes I have many to make. I just have to take the time to do them well.

I have a fix / suggestion:
This will only change the light color for the first light it finds by name. In my game instance I've used a different API call to grab all the blocks matching by name and iterate through them changing the color. Also, a screenshot of colored lights would probably go well with this script.