Examine source code of Akame Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Akame",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(52, 52, 52, 0.37)",
      "toolbar_text": "rgb(237, 237, 240)",
      "frame": "rgb(30, 30, 32)",
      "tab_background_text": "rgb(212, 212, 212)",
      "toolbar_field": "rgb(30, 30, 32)",
      "toolbar_field_text": "rgb(240, 240, 240)",
      "tab_line": "rgb(64, 64, 64)",
      "popup": "rgb(50, 50, 51)",
      "popup_text": "rgb(202, 202, 202)",
      "tab_loading": "rgb(64, 64, 64)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6544d150-6d2f-44ae-b9dd-e46280c0e9c7}"
    }
  }
}