Examine source code of Forest for the Trees

{
  "name": "Forest Green",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Screenshot 2021-11-15 002325.png"
    },
    "colors": {
      "frame": "rgba(1, 69, 16, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(60, 130, 52, 1)",
      "toolbar_field": "rgba(1, 69, 16, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  }
}