Examine source code of Pastel Cool

{
  "name": "Pastel Cool",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "pixil-frame-0.png"
    },
    "colors": {
      "frame": "rgba(50, 39, 117, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(240, 173, 233, 1)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(54, 41, 128, 0.5)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e86094c5-b93d-4b8b-bedf-e5388ba3b702}"
    }
  }
}