I'm looking at colors.lua, I see this line.
-- In case of cells, there are two overrides - [id]_light and [id]_dark
And at the end of the file? An example.
Colors = {
-- floor_dark = GREEN,
-- floor_light = BLUE,
-- former = BLUE,
-- demon = GREEN,
}
That rather clearly demonstrates the difference between cells and entities to me, and not only am I not an experienced coder, I"m not a coder at all; I haven't touched programming since the Commodore 64 I played around with fifteen years ago.
In short, quit being an ass.