Examine source code of Lights by M♥Donna

{
  "name": "Lights by M♥Donna",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(17, 6, 18, 1)",
      "tab_background_text": "rgba(252, 255, 82, 1)",
      "toolbar": "rgba(19, 7, 20, 0)",
      "bookmark_text": "rgba(255, 255, 89, 1)",
      "toolbar_field": "rgba(19, 7, 20, 0.08)",
      "toolbar_field_text": "rgba(255, 255, 82, 1)",
      "tab_line": "rgba(247, 255, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0ed071be-0ff9-4bc4-bd22-77d2a2341b67}"
    }
  }
}