Examine source code of Dreamer

{
  "name": "Dreamer",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "Header1.jpg"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(250, 245, 245, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(250, 250, 250, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.09)",
      "toolbar_field_text": "rgba(252, 247, 247, 1)",
      "tab_line": "rgba(252, 247, 247, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{aee06112-2118-444a-b400-12bfde3a0eb9}"
    }
  }
}