Examine source code of lapin

{
  "name": "lapin",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "banner.jpg"
    },
    "colors": {
      "frame": "rgba(18, 36, 84, 1)",
      "tab_background_text": "rgba(78, 84, 122, 0.63)",
      "toolbar": "rgba(61, 75, 102, 0.63)",
      "bookmark_text": "rgba(78, 84, 122, 0.63)",
      "toolbar_field": "rgba(42, 41, 71, 0.63)",
      "toolbar_field_text": "rgba(78, 84, 122, 0.63)",
      "tab_line": "rgba(107, 108, 128, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{53f2ab17-7918-4901-a70a-b74e93434cf0}"
    }
  }
}