Examine source code of Pastel Green

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Pastel Green",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(219, 220, 219)",
      "toolbar_text": "rgb(136, 141, 129)",
      "frame": "rgb(201, 197, 197)",
      "tab_background_text": "rgb(132, 168, 67)",
      "toolbar_field": "rgba(255, 255, 255, 0.7)",
      "toolbar_field_text": "rgb(132, 168, 67)",
      "tab_line": "rgb(132, 168, 67)",
      "popup": "rgb(219, 220, 219)",
      "popup_text": "rgb(132, 168, 67)",
      "tab_loading": "rgb(132, 168, 67)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cf7f0991-e7f0-4428-b7b7-9863c558bb73}"
    }
  }
}