Examine source code of Fire theme

{
  "name": "Fire theme",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Screenshot 2021-10-21 at 6.27.40 PM.png"
    },
    "colors": {
      "frame": "rgba(228, 227, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(5, 200, 230, 1)",
      "bookmark_text": "rgba(32, 79, 230, 1)",
      "toolbar_field": "rgba(74, 149, 255, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(5, 0, 8, 1)"
    }
  }
}