Examine source code of Solarized Dark

{
  "name": "Solarized Dark",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "1x1-00000000.png"
    },
    "colors": {
      "frame": "rgba(0, 43, 54, 1)",
      "tab_background_text": "rgba(131, 148, 150, 1)",
      "toolbar": "rgba(0, 43, 54, 1)",
      "bookmark_text": "rgba(131, 148, 150, 1)",
      "toolbar_field": "rgba(7, 54, 66, 1)",
      "toolbar_field_text": "rgba(147, 161, 161, 1)",
      "tab_line": "rgba(88, 110, 117, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{16cf635d-3174-43f4-9944-78e682b70b12}"
    }
  }
}