Examine source code of Dark Blue Spotty

{
  "name": "Dark Blue Spotty",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Dark Blue Spotties.png"
    },
    "colors": {
      "frame": "rgba(24, 35, 52, 1)",
      "tab_background_text": "rgba(255, 255, 255, 0.6)",
      "toolbar": "rgba(43, 61, 83, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(24, 35, 52, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.6)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0b8b2adc-2086-42f7-b3b1-14747994fd61}"
    }
  }
}