Examine source code of Dark Mononoke Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Mononoke Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(50, 50, 52)",
      "toolbar_text": "rgb(219, 219, 219)",
      "frame": "rgb(76, 74, 72)",
      "tab_background_text": "rgb(161, 161, 161)",
      "toolbar_field": "rgb(71, 71, 73)",
      "toolbar_field_text": "rgb(176, 176, 176)",
      "tab_line": "rgb(244, 100, 77)",
      "popup": "rgb(76, 74, 72)",
      "popup_text": "rgb(194, 194, 194)",
      "ntp_background": "rgb(42, 42, 46)",
      "tab_loading": "rgb(244, 100, 77)"
    }
  }
}