Examine source code of natty

{
  "name": "natty",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Screenshot_2021-12-24-12-36-35-26_b783bf344239542886fee7b48fa4b892.jpg"
    },
    "colors": {
      "frame": "rgba(9, 43, 122, 0.01)",
      "tab_background_text": "rgba(245, 17, 120, 1)",
      "toolbar": "rgba(240, 12, 12, 1)",
      "bookmark_text": "rgba(247, 255, 255, 1)",
      "toolbar_field": "rgba(107, 107, 130, 1)",
      "toolbar_field_text": "rgba(31, 5, 5, 1)",
      "tab_line": "rgba(250, 238, 5, 0.07)"
    }
  }
}