Examine source code of Pastel Pixels

{
  "name": "Pixel Pastel Powerlines",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "PPP APNG.png"
    },
    "colors": {
      "frame": "rgba(84, 109, 168, 1)",
      "tab_background_text": "rgba(69, 199, 255, 1)",
      "toolbar": "rgba(255, 184, 250, 0.18)",
      "toolbar_field": "rgba(69, 193, 255, 0.4)",
      "toolbar_field_text": "rgba(242, 127, 255, 1)",
      "tab_line": "rgba(69, 199, 255, 0.51)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c1e99630-a8ce-429f-8a13-d275751bda84}"
    }
  }
}