Examine source code of miso & kinoko

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "miso & kinoko",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(136, 155, 116)",
      "toolbar_text": "rgb(250, 206, 0)",
      "frame": "rgb(136, 155, 116)",
      "tab_background_text": "rgb(189, 59, 54)",
      "toolbar_field": "rgb(189, 59, 54)",
      "toolbar_field_text": "rgb(250, 206, 0)",
      "tab_line": "rgb(253, 165, 78)",
      "popup": "rgb(136, 155, 116)",
      "popup_text": "rgb(250, 206, 0)",
      "tab_loading": "rgb(253, 165, 78)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7024ef6d-74a3-46c2-9bed-ecfe59dac10c}"
    }
  }
}