Examine source code of trench flowers

{
  "name": "trench",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "da20a5b83f88d8c805a6d802c0a08582.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(122, 132, 148, 1)",
      "toolbar": "rgba(3, 3, 3, 0.68)",
      "bookmark_text": "rgba(170, 179, 194, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.5)",
      "toolbar_field_text": "rgba(145, 117, 35, 1)",
      "tab_line": "rgba(107, 86, 17, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0c1d9dfc-19be-41fc-b903-ef7fbdd8812d}"
    }
  }
}