Examine source code of cnco2018

{
  "name": "cnco",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "DoD__TMXUAATCg0.jpg"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 0.98)",
      "tab_background_text": "rgba(191, 31, 170, 1)",
      "bookmark_text": "rgba(191, 31, 170, 1)"
    }
  }
}