Examine source code of Dark Forest Light

{
  "name": "Dark Forest Light",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "DarkForestLightH.jpg"
    },
    "colors": {
      "frame": "rgba(37, 53, 56, 1)",
      "tab_background_text": "rgba(231, 255, 227, 1)",
      "toolbar": "rgba(37, 52, 56, 0)",
      "bookmark_text": "rgba(208, 223, 250, 1)",
      "toolbar_field": "rgba(37, 53, 56, 0.07)",
      "toolbar_field_text": "rgba(225, 255, 217, 1)",
      "tab_line": "rgba(225, 255, 217, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6fd81e06-c8e1-4e64-8137-3d43115a4834}"
    }
  }
}