Examine source code of Easter 2023

{
  "name": "Green",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Green.png"
    },
    "colors": {
      "frame": "rgba(143, 255, 173, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(145, 255, 178, 0.72)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(3, 217, 255, 0.67)",
      "toolbar_field_text": "rgba(230, 255, 0, 1)",
      "tab_line": "rgba(3, 3, 3, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9abdd64e-ed41-4800-9105-0ac09a73b51c}"
    }
  }
}