Examine source code of Oceanic

{
  "name": "Blue or Green?",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled.jpg"
    },
    "colors": {
      "frame": "rgba(72, 124, 116, 1)",
      "tab_background_text": "rgba(202, 247, 240, 1)",
      "toolbar": "rgba(77, 138, 129, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(31, 59, 55, 1)",
      "toolbar_field_text": "rgba(202, 247, 240, 1)"
    }
  }
}