Examine source code of Hardcorechopper 2

{
  "name": "Hardcorechopper 2",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "chopper.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 0)",
      "tab_background_text": "rgba(0, 64, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(9, 0, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.42)",
      "toolbar_field_text": "rgba(0, 34, 255, 1)",
      "tab_line": "rgba(255, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4d9e8592-66fd-4c3c-a2bb-2396a4cc6e07}"
    }
  }
}