Examine source code of Pastel Paints

{
  "name": "Pastel Paints",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "PastelPaintsH.jpg"
    },
    "colors": {
      "frame": "rgba(215, 237, 185, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(214, 237, 185, 0.03)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(3, 3, 3, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c5bcf34a-f8eb-4969-9699-4bdc86e035c6}"
    }
  }
}