yellow flowers, particularly roses, have always signified freedom and rebirth (very prominent in the Christian trilogy) where as pale pink roses symbolize grace and gentleness which, though a positive feeling, is not the emotion that is trying to be conveyed in this song. But I find the fact that the singer purposely chooses not to be pale pink but, rather, to be bright as yellow, is making her intentions clear as day - she wants to shout joy and freedom, rather than humbling grace.
yellow flowers, particularly roses, have always signified freedom and rebirth (very prominent in the Christian trilogy) where as pale pink roses symbolize grace and gentleness which, though a positive feeling, is not the emotion that is trying to be conveyed in this song. But I find the fact that the singer purposely chooses not to be pale pink but, rather, to be bright as yellow, is making her intentions clear as day - she wants to shout joy and freedom, rather than humbling grace.