Examine source code of Dark Watercolor

{
  "name": "Dark Watercolor",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "abstrakt104.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 0.83)",
      "bookmark_text": "rgba(191, 191, 191, 1)",
      "toolbar_field": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(201, 201, 201, 1)",
      "tab_line": "rgba(114, 110, 179, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4b78c3e0-e541-472d-ad47-c188d204fa60}"
    }
  }
}