Examine source code of Solid Abstract Blue II

{
  "name": "Solid Abstract Blue Gradient",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Firefox.Theme.II.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "bookmark_text": "rgba(13, 19, 133, 1)",
      "toolbar_field_text": "rgba(0, 3, 209, 1)",
      "tab_line": "rgba(0, 0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4d025b0c-67bd-4a4d-92d8-d3c5bcd64739}"
    }
  }
}