Examine source code of blue baby addon

{
  "name": "blue baby addon",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "sdasssdasdds.png"
    },
    "colors": {
      "frame": "rgba(45, 169, 194, 1)",
      "tab_background_text": "rgba(45, 169, 194, 1)",
      "toolbar": "rgba(0, 0, 0, 1)",
      "bookmark_text": "rgba(107, 245, 255, 1)",
      "toolbar_field": "rgba(13, 52, 66, 1)",
      "toolbar_field_text": "rgba(107, 245, 255, 1)",
      "tab_line": "rgba(45, 169, 194, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{80385ead-bc51-4bfe-839a-1dd056f50cc7}"
    }
  }
}