Examine source code of Kmldarktheme

{
  "name": "Kmldarktheme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "ff.png"
    },
    "colors": {
      "frame": "rgba(40, 42, 54, 1)",
      "tab_background_text": "rgba(98, 114, 164, 1)",
      "toolbar": "rgba(40, 42, 54, 1)",
      "bookmark_text": "rgba(80, 250, 123, 1)",
      "toolbar_field": "rgba(40, 42, 54, 1)",
      "toolbar_field_text": "rgba(255, 121, 198, 1)",
      "tab_line": "rgba(40, 42, 54, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{543622bf-82a1-422c-94f6-4ed39e1b2611}"
    }
  }
}