Examine source code of Net2019

{
  "name": "Net2019",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "net2019_2.jpg"
    },
    "colors": {
      "frame": "rgba(82, 84, 87, 1)",
      "tab_background_text": "rgba(38, 255, 67, 1)"
    }
  }
}