Examine source code of Anime Dark Theme

{
  "manifest_version": 2,
  "version": "4.0",
  "name": "Anime Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(179, 179, 179, 0)",
      "toolbar_text": "rgb(85, 85, 85)",
      "frame": "rgb(0, 0, 32)",
      "tab_backgroung_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgba(62, 69, 69, 0.26)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 0, 55)",
      "popup": "rgb(32, 48, 52)",
      "popup_text": "rgb(188, 188, 188)",
      "tab_loading": "rgb(255, 0, 55)",
      "ntp_background": "rgb(51, 51, 51)",
      "ntp_text": "white",
      "sidebar": "rgb(51, 51, 55)",
      "frame_inactive": "rgb(51, 51, 55)"
    }
  }
}