Examine source code of Diamond Pattern

{
  "name": "Diamond Pattern",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "200 pixel height diamonds.png"
    },
    "colors": {
      "frame": "rgba(3, 79, 255, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "bookmark_text": "rgba(255, 0, 0, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(189, 159, 159, 1)",
      "tab_line": "rgba(3, 219, 104, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dd286706-1aec-4184-b7b1-ee0c30489ba3}"
    }
  }
}