Examine source code of himalayan

{
  "name": "himalayan",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "300px-Dhaulagiri_I.jpg"
    },
    "colors": {
      "toolbar_field": "rgba(92, 62, 62, 1)",
      "toolbar_field_text": "rgba(122, 85, 85, 1)",
      "frame": "rgba(150, 159, 179, 1)",
      "tab_background_text": "rgba(252, 247, 247, 1)"
    }
  }
}