Examine source code of Dark Foliage

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Foliage",
  "theme": {
    "images": {
      "additional_backgrounds": []
    },
    "properties": {
      "additional_backgrounds_alignment": [],
      "additional_backgrounds_tiling": []
    },
    "colors": {
      "toolbar": "rgb(6, 91, 25)",
      "toolbar_text": "rgb(183, 244, 167)",
      "frame": "rgb(14, 47, 7)",
      "tab_background_text": "rgb(168, 255, 143)",
      "toolbar_field": "rgb(213, 230, 209)",
      "toolbar_field_text": "rgb(106, 157, 81)",
      "tab_line": "rgb(112, 244, 8)",
      "popup": "rgb(14, 47, 7)",
      "popup_text": "rgb(127, 185, 114)",
      "frame_inactive": "rgb(136, 223, 67)",
      "icons": "rgb(174, 221, 163)",
      "tab_loading": "rgb(112, 244, 8)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{506045b4-a2cf-4f1c-a3ee-78936cdff3ab}"
    }
  }
}