Examine source code of DarkTron

{
  "name": "DarkTron",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "broken-red-crack-5k-wallpaper-background-61638701032znnozflar4.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(0, 255, 255, 1)",
      "toolbar": "rgba(0, 30, 30, 1)",
      "bookmark_text": "rgba(0, 255, 255, 1)",
      "toolbar_field": "rgba(0, 49, 51, 1)",
      "toolbar_field_text": "rgba(0, 247, 255, 1)",
      "tab_line": "rgba(64, 64, 64, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bba2049e-afdd-476f-a4c6-ba789c4c2cb1}"
    }
  }
}