Examine source code of Innocence.

{
  "name": "Innocence.",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "InnocenceH2copy.jpg"
    },
    "colors": {
      "frame": "rgba(242, 235, 234, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(245, 238, 237, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(245, 238, 237, 0.08)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4ef4a79f-ea3f-49b4-a01a-d3f8c4aa19f8}"
    }
  }
}