Examine source code of GamerX

{
  "name": "GamerX",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "fond.png"
    },
    "colors": {
      "frame": "rgba(5, 5, 10, 1)",
      "tab_background_text": "rgba(115, 115, 115, 1)",
      "toolbar": "rgba(5, 5, 20, 1)",
      "bookmark_text": "rgba(175, 175, 175, 1)",
      "toolbar_field": "rgba(115, 7, 32, 0.67)",
      "toolbar_field_text": "rgba(255, 250, 250, 1)"
    }
  }
}