Examine source code of Sky Blue Solid

{
  "name": "Sky Blue Solid",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "SkyBlueH.jpg"
    },
    "colors": {
      "frame": "rgba(42, 95, 209, 1)",
      "tab_background_text": "rgba(237, 230, 230, 1)",
      "toolbar": "rgba(42, 89, 209, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(42, 89, 209, 0.09)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fd75767f-45a5-4ed1-bc2d-2912cc1377d9}"
    }
  }
}