Examine source code of CyberSludge

{
  "name": "CyberSludge",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "sunset.svg"
    },
    "colors": {
      "frame": "rgba(30, 29, 69, 0.9)",
      "tab_background_text": "rgba(118, 193, 255, 1)",
      "toolbar": "rgba(55, 41, 99, 1)",
      "bookmark_text": "rgba(238, 109, 255, 1)",
      "toolbar_field": "rgba(67, 0, 125, 0.5)",
      "toolbar_field_text": "rgba(238, 109, 255, 1)",
      "tab_line": "rgba(10, 110, 84, 1)"
    }
  }
}