In preparation for spring, I am paying tribute to the color yellow. Yellow is such a happy color, which is why it’s so abstuse to hear the term mellow yellow. Here are a few of my favorite things for spring. Good bye mellow, hello yellow.Marc Jacobs Nylon Hobo bag, $168 at Neiman Marcus.Vera Wang Lavender Label strapless metallic dress, $480. Think Gold Cup or Preakness in May. This top makes my heart flutter. This Woven Embroidered Tunic available at Forever 21 is so adorable and only $19.80.Cute floral Betsey Johnson D’Orsay Peeptoe Pumps, $150.