Examine source code of Dewdrops

{
  "name": "Dewdrops",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "dew-drops.jpg"
    },
    "colors": {
      "frame": "rgba(107, 107, 107, 1)",
      "tab_background_text": "rgba(237, 237, 237, 1)",
      "toolbar": "rgba(153, 189, 172, 0.27)",
      "bookmark_text": "rgba(247, 242, 242, 0.87)",
      "toolbar_field": "rgba(181, 181, 181, 0.32)",
      "toolbar_field_text": "rgba(224, 220, 220, 0.72)"
    }
  }
}