Examine source code of Oolite Cobra Coriolis

{
  "name": "Oolite Cobra Coriolis",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "headerv2.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(239, 252, 243, 1)",
      "toolbar": "rgba(84, 83, 83, 0.5)",
      "bookmark_text": "rgba(244, 252, 244, 1)",
      "toolbar_field": "rgba(128, 128, 128, 0.75)",
      "toolbar_field_text": "rgba(0, 10, 0, 1)"
    }
  }
}