Examine source code of Dark Gray with Purple

{
  "name": "Dark Gray with Purple",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "1111.png"
    },
    "colors": {
      "frame": "rgba(20, 20, 20, 1)",
      "tab_background_text": "rgba(175, 92, 214, 1)",
      "toolbar": "rgba(64, 64, 64, 1)",
      "bookmark_text": "rgba(175, 92, 214, 1)",
      "toolbar_field": "rgba(38, 38, 38, 1)",
      "toolbar_field_text": "rgba(175, 92, 214, 1)",
      "tab_line": "rgba(175, 92, 214, 1)"
    }
  }
}