Examine source code of space theme

{
  "name": "teminhateste",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "external-content.duckduckgo.com.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(183, 0, 255, 1)",
      "toolbar": "rgba(179, 9, 173, 1)",
      "bookmark_text": "rgba(58, 15, 64, 1)",
      "toolbar_field": "rgba(255, 0, 217, 1)",
      "toolbar_field_text": "rgba(22, 14, 51, 1)",
      "tab_line": "rgba(255, 0, 234, 1)"
    }
  }
}