Examine source code of CODA

{
  "name": "CODA",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled.png"
    },
    "colors": {
      "frame": "rgba(130, 83, 156, 1)",
      "tab_background_text": "rgba(241, 229, 255, 1)",
      "toolbar": "rgba(56, 28, 97, 1)",
      "bookmark_text": "rgba(252, 226, 250, 1)",
      "toolbar_field": "rgba(38, 1, 74, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(173, 0, 169, 0.58)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fadf8b4d-df92-4400-a858-066f29cbccdb}"
    }
  }
}