Examine source code of Stitch by M♥Donna

{
  "name": "Stitch vy M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Stitch .jpg"
    },
    "colors": {
      "frame": "rgba(204, 231, 214, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(204, 232, 215, 0)",
      "bookmark_text": "rgba(10, 10, 10, 1)",
      "toolbar_field": "rgba(204, 232, 215, 0.09)",
      "toolbar_field_text": "rgba(3, 3, 3, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f2af5a76-e25a-402c-8e5d-b8b34ae98cac}"
    }
  }
}