Examine source code of Midnight Chillville

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Midnight ChillVille",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(96, 0, 255, 0.3)",
      "toolbar_text": "rgb(0, 255, 162)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(0, 91, 59)",
      "toolbar_field": "rgba(0, 0, 0, 0.44)",
      "toolbar_field_text": "rgb(0, 255, 162)",
      "tab_line": "rgb(0, 255, 162)",
      "popup": "rgba(32, 0, 87, 0.57)",
      "popup_text": "rgb(0, 255, 162)",
      "button_background_active": "rgba(0, 7, 255, 0.45)",
      "button_background_hover": "rgb(0, 7, 255)",
      "frame_inactive": "rgb(255, 0, 5)",
      "icons_attention": "rgb(0, 255, 162)",
      "icons": "rgb(0, 255, 162)",
      "popup_border": "rgb(0, 255, 162)",
      "popup_highlight_text": "rgb(0, 255, 162)",
      "popup_highlight": "rgb(0, 7, 255)",
      "sidebar_border": "rgba(0, 7, 255, 0.46)",
      "sidebar_highlight_text": "rgb(0, 255, 162)",
      "sidebar_highlight": "rgb(0, 7, 255)",
      "sidebar_text": "rgb(0, 255, 162)",
      "sidebar": "rgb(29, 1, 78)",
      "tab_background_separator": "rgb(255, 0, 4)",
      "tab_loading": "rgb(0, 7, 255)",
      "tab_text": "rgb(0, 255, 158)",
      "toolbar_bottom_separator": "rgba(0, 7, 255, 0.46)",
      "toolbar_field_border_focus": "rgba(0, 7, 255, 0.46)",
      "toolbar_field_border": "rgba(0, 7, 255, 0.46)",
      "toolbar_field_focus": "rgba(32, 0, 87, 0.57)",
      "toolbar_field_highlight_text": "rgb(0, 255, 162)",
      "toolbar_field_highlight": "rgb(0, 7, 255)",
      "toolbar_field_separator": "rgb(255, 0, 5)",
      "toolbar_field_text_focus": "rgb(255, 0, 5)",
      "toolbar_top_separator": "rgba(0, 7, 255, 0.46)",
      "toolbar_vertical_separator": "rgb(255, 0, 5)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c39c160e-4118-4b97-96d6-dda83631d73a}"
    }
  }
}