Examine source code of Mahmudiya Dark

{
  "name": "Mahmudiya Dark Theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Black Theme.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 0.73)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(196, 190, 190, 1)",
      "toolbar_field": "rgba(10, 9, 9, 0.24)",
      "toolbar_field_text": "rgba(230, 230, 230, 1)",
      "tab_line": "rgba(92, 214, 129, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5c7512ca-fc55-404e-8f91-69398dae9951}"
    }
  }
}