Examine source code of Levi - Lavenders

{
  "name": "Levi - Lavenders",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Mozilla Theme.jpg"
    },
    "colors": {
      "frame": "rgba(124, 107, 125, 1)",
      "tab_background_text": "rgba(138, 123, 96, 1)",
      "toolbar": "rgba(124, 107, 125, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(124, 107, 125, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  }
}