Idioms about colour

When reading, we can meet some idioms or expressions with different colours. Personally, I accumulated some, such as white lies, black sheep, green hand, red tape, black and blue etc. However, this is just the tip of the iceberg. I never think of any good method to remember or understand them effectively. I coincidently browsed a web, where these color idioms were taught in a story. That is to say, in a context. So cool. To tell the truth, I like this. Share it with all of you:

A Silver Lining ( And there is an audio file, ^-^ )

P.S: A little long. Patient, please. I benefit much from it. I think you also can.