Examine source code of Chase Atlantic

{
  "name": "Chase Atlantic",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Design sans titre(1).png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(64, 64, 64, 1)",
      "toolbar": "rgba(0, 0, 0, 0.17)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(247, 247, 247, 0.52)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{443487d4-5d65-44d2-ad0c-1120b7372ab4}"
    }
  }
}