Examine source code of Strength

{
  "name": "Strength",
  "manifest_version": 2,
  "version": "8.0",
  "theme": {
    "images": {
      "theme_frame": "New Bitmap Image 11.jpg"
    },
    "colors": {
      "frame": "rgba(220, 235, 52, 1)",
      "tab_background_text": "rgba(250, 233, 0, 1)",
      "toolbar": "rgba(10, 10, 10, 1)",
      "bookmark_text": "rgba(250, 233, 0, 1)",
      "toolbar_field": "rgba(252, 196, 13, 1)",
      "toolbar_field_text": "rgba(255, 0, 0, 1)"
    }
  }
}