Examine source code of DARK_SAKURA

{
  "name": "DARK_SAKURA",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "darkred2.png"
    },
    "colors": {
      "frame": "rgba(43, 16, 16, 1)",
      "tab_background_text": "rgba(255, 184, 184, 1)",
      "toolbar": "rgba(54, 0, 23, 1)",
      "toolbar_field": "rgba(255, 220, 219, 1)",
      "tab_line": "rgba(255, 184, 184, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a0332550-d824-40fd-a5cb-a474bfe3e32f}"
    }
  }
}