Which light or lights are all vessels required to display when moored or anchored outside a designated mooring area between sunset and sunrise?.

In an article about americans working in middle eastern countries, cicy, a white journalist, is described as knowing that she should cover her hair when she leaves her house. according to this article, cicy:

Take the tour on this website and describe three pieces in the art collection of the early cities. (site 1)

What convetion did chardin and delacroix use in the painting grace before meal and liberty leading the people to give the artworks a sense of harmony and stability?