Examine source code of Trainer N

{
  "name": "large",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "large.jpg"
    },
    "colors": {
      "frame": "rgba(87, 87, 87, 0.03)",
      "tab_background_text": "rgba(37, 54, 38, 1)",
      "toolbar": "rgba(40, 171, 88, 0.14)",
      "bookmark_text": "rgba(71, 128, 56, 0.71)",
      "toolbar_field": "rgba(224, 182, 182, 0.53)",
      "toolbar_field_text": "rgba(23, 33, 17, 0.57)"
    }
  }
}