Examine source code of eeveelutions

{
  "name": "eeveelutions",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "4218f8799c88f1dc932316eefa4f45824e2b9705r1-1280-720v2_uhq.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(186, 185, 222, 0.41)",
      "bookmark_text": "rgba(214, 186, 197, 1)",
      "toolbar_field": "rgba(235, 183, 228, 1)"
    }
  }
}