'Horse of another color' is the opposite expression from Shakespeare's 'a horse of that color' in the Twelfth Night Act 2 Scene 3 where Maria told Sir Toby Belch that her purpose was indeed a horse of that color which meant that Sir Toby Belch got the same idea as hers. So, 'horse of another color' is an idea different from the other.
The swallow's body most likely symbolizes Love and devotion<span />
Research has it that,stress is commonly associated by loss of interest in things or people ,by shopping one is able to focus on positive increase affect in the body by acquiring positive vibes or emotions thus regulation of negative emotions plus stress.