Examine source code of Red dwarf and starbug

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Red dwarf",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg",
        "images/2.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center",
        "left top",
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "repeat",
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(71, 71, 71, 0.76)",
      "toolbar_text": "rgb(31, 216, 238)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(234, 10, 10)",
      "toolbar_field": "rgba(0, 0, 0, 0.79)",
      "toolbar_field_text": "rgb(218, 17, 39)",
      "tab_line": "rgb(117, 119, 154)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(223, 15, 15)",
      "button_background_hover": "rgba(22, 22, 23, 0.77)",
      "icons_attention": "rgb(255, 33, 0)",
      "ntp_background": "rgba(110, 110, 119, 0.83)",
      "tab_loading": "rgba(234, 10, 10, 0.72)",
      "toolbar_bottom_separator": "rgb(22, 22, 23)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{237f2d25-99f2-4b6d-b00b-9f449333ed45}"
    }
  }
}