Examine source code of Primarina

{
  "name": "Pokemon - Primarina",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Pokemon - Primarina.png"
    },
    "colors": {
      "frame": "rgba(212, 238, 244, 1)",
      "tab_background_text": "rgba(50, 185, 209, 1)",
      "toolbar": "rgba(213, 238, 245, 0.43)",
      "bookmark_text": "rgba(50, 185, 209, 1)",
      "toolbar_field": "rgba(213, 238, 245, 0.46)",
      "toolbar_field_text": "rgba(0, 121, 192, 1)",
      "tab_line": "rgba(240, 137, 154, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{16f14a75-62f8-452c-9e3e-106cf3358c55}"
    }
  }
}