"Color Me Shocked!"
In English we use this idiom to express the idea that we're not shocked after being told something that may or should be shocking.
A: The Indiana Pacer lost to LeBron James and the Miami Heat in game 7 of the Eastern Conference finals.
B: Color me shocked.
When we hear or read emotional news and have no reaction to the news or emotional state being set upon us because it was expected or unsurprising.
A: Someone leaked a slide of a NSA presentation that proves they have direct access to our email, facebook, skype, and other website information.
B: Color me shocked.
As in a coloring book with white pages, you color the picture the correct or appropriate color for the object, we color our expression the correct or appropriate adjective.
A: You burped so loudly everyone heard you.
B: Well, color me embarrassed.
Speak Bravely!