Examine source code of cute pattern

{
  "name": "cute pattern",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "anifirefox.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 0.41)",
      "toolbar": "rgba(189, 189, 189, 0.15)",
      "bookmark_text": "rgba(89, 89, 89, 0.82)",
      "toolbar_field_text": "rgba(66, 66, 66, 0.8)"
    }
  }
}