Examine source code of Emerald Lake by M♥Donna

{
  "name": "Emerald Lake by M♥Donna",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(5, 0, 3, 1)",
      "tab_background_text": "rgba(255, 214, 250, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(250, 247, 252, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.05)",
      "toolbar_field_text": "rgba(232, 243, 252, 1)",
      "tab_line": "rgba(232, 243, 252, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e54c4573-440d-46c9-a9e3-7314ef3789cf}"
    }
  }
}