Examine source code of Chibi Mythical Beasts

{
  "name": "Chibi Mythical Beasts",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Chibi Mythical Beasts.png"
    },
    "colors": {
      "frame": "rgba(251, 223, 224, 1)",
      "tab_background_text": "rgba(133, 222, 221, 1)",
      "toolbar": "rgba(252, 224, 224, 0)",
      "bookmark_text": "rgba(242, 109, 80, 1)",
      "toolbar_field": "rgba(252, 224, 224, 0)",
      "toolbar_field_text": "rgba(237, 151, 190, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5339188d-ba63-4abf-89f3-e77d34e6a51b}"
    }
  }
}