Examine source code of Always Here

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Always Watching",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(39, 42, 47)",
      "toolbar_text": "rgb(255, 227, 135)",
      "frame": "rgb(33, 33, 8)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(87, 83, 61)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(187, 187, 187)",
      "popup": "rgb(39, 42, 47)",
      "popup_text": "rgb(255, 227, 135)",
      "popup_border": "rgb(255, 227, 135)",
      "tab_loading": "rgb(187, 187, 187)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{59a2e4bb-6085-4b3c-97ee-24884954786a}"
    }
  }
}