Examine source code of Beastars-Funny Faces

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Beastars-Funny Faces",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg",
        "images/2.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom",
        "left bottom",
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "no-repeat",
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(254, 254, 254, 0)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(74, 74, 72)",
      "toolbar_field": "rgba(255, 255, 255, 0.1)",
      "toolbar_field_text": "rgb(51, 51, 50)",
      "tab_line": "rgb(255, 1, 17)",
      "popup": "rgb(194, 217, 174)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(255, 1, 17)"
    }
  }
}