Examine source code of Aoki Hagane

{
  "name": "Aoki Hagane",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "unnamed 1.jpg"
    },
    "colors": {
      "frame": "rgba(211, 228, 240, 0.69)",
      "tab_background_text": "rgba(0, 100, 230, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(0, 100, 230, 1)",
      "toolbar_field": "rgba(167, 200, 242, 1)",
      "toolbar_field_text": "rgba(0, 100, 230, 1)"
    }
  }
}