Examine source code of Red Media

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Red Media",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-013-06591d4ad28ab7b9ee90f62f81d6b505.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(41, 41, 41)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(20, 20, 20)",
      "tab_background_text": "rgb(223, 0, 0)",
      "toolbar_field": "rgb(20, 20, 20)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(223, 0, 0, 0)",
      "popup": "rgb(20, 20, 20)",
      "popup_text": "rgb(255, 255, 255)",
      "frame_inactive": "rgb(30, 30, 30)",
      "tab_loading": "rgb(223, 0, 0)",
      "tab_selected": "rgb(247, 247, 247)",
      "tab_text": "rgb(3, 3, 3)",
      "toolbar_field_border_focus": "rgb(223, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{15edf55f-414b-4954-b897-e5ae85d5dce8}"
    }
  }
}