Examine source code of SaguaroGreen

{
  "name": "SaguaroGreen",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "SaguaroGreen.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(2, 40, 12, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{caa65ff6-2183-40fc-b9ef-e4991bd87eb8}"
    }
  }
}