Examine source code of tenor12

{
  "name": "tenor12",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "tumblr_de4c9734607343303a55264827b1426b_9b7a9910_540.gif"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(250, 250, 250, 1)",
      "toolbar": "rgba(0, 0, 0, 1)",
      "bookmark_text": "rgba(171, 34, 34, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(189, 45, 45, 1)"
    }
  }
}