Examine source code of loud

{
  "name": "loud",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "pt-1.png"
    },
    "colors": {
      "frame": "rgba(31, 166, 159, 0.58)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(181, 181, 181, 0.27)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0.49)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{308f25ef-030d-4490-a925-73572e60ed65}"
    }
  }
}