Examine source code of onkkk

{
  "name": "onkkk",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "knhkj.jpg"
    },
    "colors": {
      "frame": "rgba(209, 209, 209, 1)",
      "tab_background_text": "rgba(3, 0, 0, 1)",
      "toolbar": "rgba(168, 27, 27, 0)",
      "bookmark_text": "rgba(156, 156, 156, 0)",
      "toolbar_field": "rgba(0, 0, 0, 0.28)",
      "toolbar_field_text": "rgba(120, 120, 120, 1)",
      "tab_line": "rgba(168, 168, 168, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4a118e0c-40d1-486e-b96a-36021df1ea89}"
    }
  }
}