Examine source code of Zblue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Zblue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-007-ea06061a8f8be943739a27dace8dc532.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(7, 50, 84)",
      "toolbar_text": "rgb(22, 218, 255)",
      "frame": "rgb(14, 41, 65)",
      "tab_background_text": "rgb(118, 204, 219)",
      "toolbar_field": "rgb(38, 72, 102)",
      "toolbar_field_text": "rgb(22, 218, 255)",
      "tab_line": "rgb(73, 212, 238)",
      "popup": "rgb(39, 64, 83)",
      "popup_text": "rgb(22, 218, 255)",
      "tab_background_separator": "rgb(0, 0, 0)",
      "tab_loading": "rgb(73, 212, 238)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c18bb213-1d65-43b2-9265-7e4c252516f2}"
    }
  }
}