Examine source code of Chernobylite

{
  "name": "Chernobylite",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Chernobylite Mozilla.png"
    },
    "colors": {
      "frame": "rgba(184, 177, 177, 0)",
      "tab_background_text": "rgba(0, 156, 29, 1)",
      "toolbar": "rgba(0, 0, 0, 0.33)",
      "bookmark_text": "rgba(0, 224, 34, 1)",
      "toolbar_field": "rgba(0, 255, 9, 0.28)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}