Examine source code of Rainbow galaxy lights

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Rainbow galaxy lights",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(132, 132, 255, 0.5)",
      "toolbar_text": "rgb(190, 255, 0)",
      "frame": "rgb(0, 0, 140)",
      "tab_background_text": "rgb(213, 0, 255)",
      "toolbar_field": "rgb(255, 255, 220)",
      "toolbar_field_text": "rgb(255, 120, 0)",
      "tab_line": "rgb(255, 0, 0)",
      "popup": "rgb(216, 255, 255)",
      "popup_text": "rgb(0, 128, 0)",
      "ntp_background": "rgb(181, 209, 240)",
      "ntp_text": "rgb(255, 0, 117)",
      "popup_border": "rgb(255, 76, 0)",
      "tab_loading": "rgb(124, 124, 124)",
      "tab_selected": "rgba(75, 75, 75, 0.5)",
      "toolbar_bottom_separator": "rgb(255, 193, 0)",
      "toolbar_field_border": "rgb(90, 0, 255)",
      "toolbar_field_text_focus": "rgb(128, 60, 0)",
      "toolbar_top_separator": "rgb(0, 255, 145)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{22b54e03-7f22-4420-86b5-5589270282f9}"
    }
  }
}