Examine source code of Flowering Tree

{
  "theme": {
    "images": {
      "theme_frame": "FloweringTreeFirefoxBanner.JPG"
    },
    "colors": {
      "frame": "#0b5439",
      "tab_background_text": "#4ff0d2"
    }
  },
  "version": "2.0",
  "name": "Flowering Tree",
  "manifest_version": 2,
  "description": "Teal toned photo of a flowering tree on my grandfather's farm blending into a slightly textured solid."
}