Examine source code of Happy Birthday...animated

{
  "theme": {
    "images": {
      "theme_frame": "headeranigif.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000099"
    }
  },
  "version": "2.0",
  "name": "Happy Birthday...animated",
  "manifest_version": 2,
  "description": "Happy Birthday, birthday bear, party hat, colored confetti, birthday cake, flickering birthday candle, animated, animation\n\nchild friendly persona\n\nPersonas by LisaAtTheBeach"
}