Examine source code of DraculaDarkTheme

{
  "name": "DraculaDarkTheme",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "dracula-bg.png"
    },
    "colors": {
      "toolbar": "rgba(68, 71, 90, 1)",
      "toolbar_field": "rgba(248, 248, 242, 1)",
      "toolbar_field_text": "rgba(68, 71, 90, 1)",
      "frame": "rgba(80, 250, 123, 1)",
      "tab_background_text": "rgba(248, 248, 242, 1)",
      "bookmark_text": "rgba(248, 248, 242, 1)"
    }
  }
}