Examine source code of Dandelion's Fluff

{
  "name": "Dandelion's Fluff",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(139, 163, 44, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(137, 163, 42, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(137, 163, 42, 0.08)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(8, 8, 8, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e1d509c3-6f0c-4a57-ae56-f1192cf54a99}"
    }
  }
}