Examine source code of Dota 2 Nevermorsha

{
  "name": "Dota 2 Nevermorsha",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Nevermorsha theme 2.png"
    },
    "colors": {
      "frame": "rgba(148, 2, 36, 1)",
      "tab_background_text": "rgba(255, 240, 247, 1)",
      "toolbar": "rgba(32, 22, 224, 0.43)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(163, 174, 255, 0.68)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}