Examine source code of Emerald Arc

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Emerald Arc",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgba(99, 127, 109, 0.8)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(94, 154, 116)",
      "tab_background_text": "rgb(15, 16, 17)",
      "toolbar_field": "rgba(13, 14, 13, 0.2)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(28, 171, 176)",
      "popup": "rgba(64, 87, 71, 0.75)",
      "popup_text": "rgb(249, 249, 249)",
      "tab_loading": "rgb(28, 171, 176)"
    }
  }
}