Examine source code of FreeNoise

{
  "name": "FreeNoise",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "ICON3.png"
    },
    "colors": {
      "frame": "rgba(82, 161, 250, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(235, 235, 235, 1)",
      "bookmark_text": "rgba(199, 159, 159, 1)",
      "toolbar_field": "rgba(136, 191, 219, 1)",
      "toolbar_field_text": "rgba(240, 240, 240, 1)"
    }
  }
}