Examine source code of Spring is Happy by Miss Millie Mills

{
  "theme": {
    "images": {
      "theme_frame": "beautefleurs8.jpg"
    },
    "colors": {
      "frame": "#ffda94",
      "tab_background_text": "#fa5300"
    }
  },
  "version": "2.0",
  "name": "Spring is Happy",
  "manifest_version": 2,
  "description": "Tags :Butterflies Butterfly Summer Joy\nHolidays Flower Magic Cornflower,\nFirefly Stars Daisy Daisies Girl Poppies"
}