Examine source code of red bats theme (animated)

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "red bats",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(255, 20, 23)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(174, 170, 221)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(255, 0, 5)",
      "tab_line": "rgb(208, 0, 3)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(255, 80, 89)",
      "button_background_active": "rgb(0, 0, 0)",
      "button_background_hover": "rgb(40, 51, 83)",
      "icons": "rgb(255, 0, 5)",
      "popup_border": "rgb(255, 0, 15)",
      "tab_loading": "rgb(0, 0, 0)",
      "tab_selected": "rgba(0, 0, 0, 0.59)",
      "tab_text": "rgb(233, 104, 106)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{21204b2c-2f32-481a-856c-0c7e7cbde524}"
    }
  }
}