color layers a volume negative from a mist into a steam by increasing light matter
light_color is color. primary_colour_for_light is primary_colour. helium_gas is unreactive_colourless_and_odourless. liquid_nitrogen is colourless_and_odourless. primary_subtractive_colour_for_light is primary_colour_for_light. primary_colour is color. dark_color is color. blackening is change_of_color. coal is blackness. alice_blue is colour.