Examine source code of Coffee

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Coffee and chill",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-001-9c6d74e14860e77ee6f8f43e824bff25.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(109, 72, 59)",
      "toolbar_text": "rgb(248, 227, 185)",
      "frame": "rgb(71, 127, 168)",
      "tab_background_text": "rgb(248, 227, 185)",
      "toolbar_field": "rgb(248, 227, 185)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(0, 0, 0)",
      "popup": "rgb(109, 72, 59)",
      "popup_text": "rgb(248, 227, 185)",
      "ntp_background": "rgb(248, 227, 185)",
      "toolbar_field_border_focus": "rgb(238, 221, 188)",
      "tab_loading": "rgb(0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c3dc980e-bdb1-4810-9436-15724e67a751}"
    }
  }
}