Examine source code of TransSide

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "TransSide",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(8, 8, 8)",
      "toolbar_text": "rgb(147, 201, 255)",
      "frame": "rgb(0, 0, 15)",
      "tab_background_text": "rgb(145, 145, 145)",
      "toolbar_field": "rgb(15, 15, 15)",
      "toolbar_field_text": "rgb(123, 127, 204)",
      "tab_line": "rgb(255, 167, 246)",
      "popup": "rgb(0, 0, 15)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(255, 167, 246)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6af037ff-9e58-455e-b1f9-a6d6e77adfdc}"
    }
  }
}