Examine source code of GNU/FSF Theme

{
  "name": "GNU/FSF Theme",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "gg.PNG"
    },
    "colors": {
      "frame": "rgba(212, 212, 212, 1)",
      "tab_background_text": "rgba(245, 245, 245, 1)",
      "toolbar": "rgba(163, 46, 42, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(51, 51, 51, 1)"
    }
  }
}