Examine source code of Wombat

{
  "name": "Wombat",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "Wombat Zoo.png"
    },
    "colors": {
      "frame": "rgba(41, 115, 72, 1)",
      "tab_background_text": "rgba(0, 153, 79, 1)",
      "toolbar": "rgba(255, 38, 23, 0)",
      "bookmark_text": "rgba(77, 184, 129, 1)",
      "toolbar_field": "rgba(68, 171, 144, 0.32)",
      "toolbar_field_text": "rgba(95, 194, 159, 1)",
      "tab_line": "rgba(11, 120, 56, 0.98)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{74aad282-c279-49d8-9b8c-7451bc8085d2}"
    }
  }
}