Examine source code of Smoking Hand

{
  "name": "Smoking Hand",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(240, 217, 163, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(240, 217, 163, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.05)",
      "toolbar_field_text": "rgba(237, 214, 156, 1)",
      "tab_line": "rgba(237, 214, 156, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b090b80d-7eb5-4cf9-8569-44586825f6cb}"
    }
  }
}