Examine source code of Leafs Forever

{
  "name": "Leafs Forever",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "thumb-350-982484.jpg"
    },
    "colors": {
      "frame": "rgba(8, 82, 242, 1)",
      "tab_background_text": "rgba(247, 244, 244, 1)",
      "bookmark_text": "rgba(255, 247, 247, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  }
}