Examine source code of Stitch

{
  "name": "Stitch",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "f2c4466e5fff6e8802a3ff372d588095.jpg"
    },
    "colors": {
      "frame": "rgba(12, 86, 245, 1)",
      "tab_background_text": "rgba(21, 235, 235, 1)",
      "toolbar": "rgba(120, 79, 189, 1)",
      "bookmark_text": "rgba(27, 23, 107, 1)",
      "toolbar_field": "rgba(220, 243, 245, 1)",
      "toolbar_field_text": "rgba(15, 255, 179, 1)"
    }
  }
}