Examine source code of Ukraine n2

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Ukraine n2",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y"
      ]
    },
    "colors": {
      "toolbar": "rgb(31, 34, 61)",
      "toolbar_text": "rgb(208, 248, 0)",
      "frame": "rgb(8, 11, 33)",
      "tab_background_text": "rgb(225, 236, 98)",
      "toolbar_field": "rgb(54, 58, 89)",
      "toolbar_field_text": "rgb(251, 251, 251)",
      "tab_line": "rgb(182, 205, 35)",
      "popup": "rgb(31, 34, 61)",
      "popup_text": "rgb(215, 226, 239)",
      "tab_loading": "rgb(182, 205, 35)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8ec24efb-65bf-4b73-8e0e-fa443a7bedb3}"
    }
  }
}