As for symbolism, cats are symbolic of rebirth and resurrection, per their nine lives. Because they are nocturnal, they are also associated with darkness. Darkness often goes with fear, the unconscious, and things that are hidden.
A condition affecting the surface of chocolate. The chocolate adopts a dull, tannish-white color and feels gritty when touched. Only appearance is affected - not taste. It is caused by condensation of water vapor from air on the chocolate surface. The sugar in the chocolate dissolves in the water, then the water evaporates and the sugar crystals remain on the chocolate. What is fat bloom? A condition affecting the surface of chocolate. The appearance is similar to sugar bloom (dull, white), except it is shiny and feels greasy when touched.
Much of the chocolate consumed today is in the form of sweet chocolate, combining chocolate with sugar. Milk chocolate is sweet chocolate that additionally contains milk powder or condensed milk. White chocolate contains cocoa butter, sugar, and milk but no cocoa solids (and thus does not qualify to be considered true chocolate). Chocolate contains alkaloids such as theobromine and phenethylamine, which have some physiological effects in humans, but the presence of theobromine renders it toxic to some animals, such as dogs and cats.