Examine source code of Red Eyed Tree Frog

{
  "name": "Red Eyed Tree  Frog",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(255, 126, 28, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(255, 126, 28, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.08)",
      "toolbar_field_text": "rgba(247, 235, 198, 1)",
      "tab_line": "rgba(247, 235, 198, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b42bbe5e-947d-4589-ac62-a647c6a8c6c3}"
    }
  }
}